Free tools that run on your device
Every tool here works in the page: nothing is uploaded, nothing is stored, and there is no sign in. Open one, use it, close the tab. Each also says what it will not do, so you know before you start.
- 2 pages per sheet in a PDF, or 4 or 6Put 2 pages per sheet in a PDF, or 4 or 6, on A4 or Letter in reading order, with optional cut lines and a preview. Runs in your browser, nothing uploaded.
- Add a watermark to a PDFAdd a watermark to a PDF in your browser: DRAFT, CONFIDENTIAL or any text, diagonal or flat, in your size, colour and opacity, on every page or a range.
- Add page numbers to a PDFStamp page numbers onto a PDF and watch each one land on a real preview first. Roman numerals, Bates numbers, skipped covers, mirrored margins, no upload.
- Compare two PDFsCompare two PDFs in your browser: the text of both is diffed word by word, with page numbers and both pages side by side. Nothing is uploaded.
- Compress PDFMeasures where a PDF’s size actually goes, picks the method the evidence supports, and shows the same page before and after. Never hands back a bigger file.
- Crop PDF margins onlineCrop a PDF online in your browser: drag the area to keep on a page or type the margins in millimetres, apply to every page or one, and save. No upload.
- Edit PDF metadataEdit PDF metadata in your browser: set or clear the title, author, subject and keywords, strip creator, producer, dates and XMP, then save a new file.
- Extract images from a PDFExtract images from a PDF in your browser: every picture as a PNG with its page and pixel size, plus stored JPEGs byte for byte, one by one or as a zip.
- Extract pages from a PDFExtract pages from a PDF in your browser: type a page list such as 1, 3 to 5 or tap the thumbnails, and download a new PDF of only those pages. No upload.
- Fill a PDF form onlineFill a PDF form online without uploading it: type into text fields, tick checkboxes, pick radio and dropdown options, then save it still fillable or flat.
- Flatten a PDF formRead every field in a filled PDF form with its answer, fix what is wrong, then bake the answers into the page. Runs in your browser with nothing uploaded.
- JPG to PDFEach photo becomes a page you can see, turn, reorder and remove before the PDF exists. Drag with a finger or the arrow keys. In your browser, nothing uploaded.
- Merge PDFStack several PDFs, see the merged document before you build it, then save one file. Bookmarks per file, alternating scans, nothing uploaded.
- PDF booklet makerPDF booklet maker that runs in your browser: reorders a PDF into saddle stitch order, two pages a side on A4, Letter or A3, so the folded stack reads in order.
- PDF form fields listGet a PDF form fields list in your browser: name, type, page, required flag, current value and box size of every field, with a drawing of where each one sits.
- PDF metadata viewerA PDF metadata viewer that shows title, author, subject, keywords, creator, producer, dates, page count, version, encryption and page sizes, on your device.
- PDF page size checkerDrop a PDF and read a print report: every page size named against ISO 216 and ANSI, trim box against media box, bleed in millimetres, rotation and clearance.
- PDF text extractorThe page on one side, its text on the other, editable. Fix the reading order by hand, search it, then copy or download as txt, Markdown or JSON. Not uploaded.
- PDF to JPGEvery page becomes a thumbnail you tick. Save the ones you want as JPG, PNG or WebP at 96, 150 or 300 PPI, rendered in your browser with nothing uploaded.
- PDF word count, page by pagePDF word count for the whole file and each page: words, characters with and without spaces, reading time and a page range. Nothing is uploaded.
- Remove blank pages from a PDFRemove blank pages from a PDF automatically: each page's ink is measured, pages under your threshold are flagged and previewed, then removed. No upload.
- Remove PDF pagesEvery page on a contact sheet. Tap to strike one out, see what survives, undo anything. Blank scans are found for you. Nothing is uploaded.
- Reorder PDF pagesReorder PDF pages in your browser: drag page thumbnails into a new order, or type it, then save. Form fields and links between pages are kept. No upload.
- Resize PDF pages to A4, Letter or any sizeResize PDF pages to A4, Letter, A3, A5, Legal or a custom size. Each page is scaled to fit or fill and centred, with a preview. Nothing is uploaded.
- Rotate PDFEach page turns in place as you tap it, and sideways pages are turned upright for you. The turn is written into the file, not just the view.
- Sign a PDFDraw, type or photograph your signature, place it on any page and download the signed file. Runs in your browser. A drawn mark, not a certificate.
- Split PDFTap the scissors between two pages and watch the output files appear. Cut at bookmarks, every N pages, or a typed range. Runs in your browser.
Image
- Add border to imageAdd a border to an image in any colour and pixel width, with square or rounded corners and Instagram 1:1 or 4:5 padding. Runs on your device, no upload.
- Add text to image onlineAdd text to an image online: pick one of 27 fonts, a size, colour, opacity and rotation, drag it into place and save a PNG. Your photo is never uploaded.
- Blur image onlineBlur an image online with a Gaussian blur, all over or only inside boxes you drag, such as a face in a crowd. Runs on your device; the photo is never uploaded.
- Check image size onlineCheck image size online: width, height, aspect ratio, file size, format and colour depth for up to 20 images, plus which flyer sizes each one fills.
- Collage maker onlineA collage maker online: 2 to 9 photos in a 2, 3, 4, 6 or 9 cell grid with your gap and background colour, saved as one PNG. Photos never leave your device.
- Colour picker from imageDrag a magnifier across a picture and read the pixel under it as hex, RGB, HSL and OKLCH, with sample averaging, arrow key nudging and a history of picks.
- Convert an imageSee your own picture measured in PNG, JPEG and WebP before you choose, then convert. Transparency is handled deliberately, and HEIC is explained.
- Convert image to black and whiteConvert an image to black and white using Rec. 709 luminance, add contrast with a slider, and save PNG or JPG. Runs in your browser, nothing is uploaded.
- EXIF viewer onlineEXIF viewer online that reads a JPG in your browser: camera, lens, date taken, exposure, orientation, colour profile and GPS location, with nothing uploaded.
- Extract images from a PowerPoint fileExtract images from a PowerPoint .pptx in your browser: every picture, video and audio file packed in the deck, with the slides that use each, as a zip.
- Favicon generatorDrop one image and see your favicon in a browser tab, a bookmarks bar, a Google result and a phone home screen, then download the ICO, PNGs and manifest.
- Image colour changerTap a colour in the image, pick its replacement, and see a mask of exactly which pixels change. Runs on your device, so the artwork is never uploaded.
- Image compressorCompress to WebP or JPEG and compare the result against the original under a divider you drag. Or ask for a size in KB. Nothing is uploaded.
- Image cropperCrop with a draggable box and 44 pixel handles, locked shapes for square, 4:5, 9:16 and 16:9, thirds guides, quarter turns and arrow key nudging.
- Image resizerResize a batch of images to an exact width, height or percentage. Fit, fill or stretch, with a stepped downscale that keeps detail. Nothing is uploaded.
- Image to base64Turn an image into a data URI for CSS, HTML, Markdown or JSON, with the character count, the gzipped cost, and a verdict on whether it should be inlined.
- Invert image coloursInvert image colours online: every red, green and blue value is flipped, transparency kept, saved as PNG. Made for icons and line art. Nothing is uploaded.
- Palette extractorCluster a photograph in CIE Lab and get the colours it is made of, each with its share of the pixels and a suggested design role. Runs in your browser.
- Pixelate image onlinePixelate an image online, all over or inside boxes you drag over a face or a plate, with a block size slider. Warns below 16 px blocks. Nothing is uploaded.
- Rotate image onlineRotate an image online by 90, 180 or 270 degrees, or flip it horizontally or vertically, and save it in the same format. Runs on your device, nothing uploaded.
- Round image corners onlineRound image corners online with a radius slider, or crop a full circle for a profile photo. Saves a PNG with transparent corners, made on your own device.
- Split an image into a gridSplit an image into a grid of 3 by 1, 3 by 2, 3 by 3 or 2 by 2 tiles in your browser, numbered in posting order and saved as PNGs in one zip file.
- SVG to PNGRasterise an SVG at any size in your browser. It reads the declared width, height and viewBox, and warns about the fonts and links that will not survive.
Colour
- Colour blindness simulatorColour blindness simulator: see an image or a palette under protanopia, deuteranopia, tritanopia and achromatopsia side by side, on your own device.
- Colour contrast matrixColour contrast matrix: paste 2 to 12 colours and see every pair's WCAG ratio with AA and AAA marks, and which pairs are safe for body text.
- Colour converterPick a colour on a live OKLCH plane and read it in nine notations at once, with the sRGB gamut boundary drawn and the contrast on white and black shown.
- Colour mixer onlineColour mixer online: mix two colours at any ratio and see the result as an RGB average, an OKLCH paint-like mix and a CMYK approximation, with hex codes.
- Colour name finderColour name finder: enter a hex or RGB value, or pick from the screen, and get the nearest CSS colour name and the nearest of 1,566 named colours.
- Colour palette generatorColour palette generator: pick one seed colour and get monochrome, analogous, triadic and split palettes with hex, RGB, HSL and a WCAG text check.
- Complementary colour finderComplementary colour finder: enter a colour to get its complement, the two split complementary colours and an accent that passes WCAG contrast on it.
- Contrast checkerSet a text colour and a background and read the WCAG ratio on a live specimen, with a pass or fail attached to every size from 30px down to 13px.
- CSS gradient generatorCSS gradient generator: set 2 to 5 colour stops, an angle and a linear, radial or conic type, then copy the CSS or download a PNG at any size.
- Font pairing toolA font pairing tool that previews a heading and body font together at flyer, slide and document sizes, then gives you the Google Fonts CSS to copy.
- Recolour an SVG iconRecolour an SVG icon in your browser: swap its fill and stroke colours for one new colour or colour by colour, then download it as SVG or as a PNG at any size.
- Tints and shades generatorTints and shades generator: 10 lighter and 10 darker steps of any colour, with hex values and the contrast of black and white text on each.
Text
- Case converterSee sentence case, title case, camelCase, snake_case and eleven more rendered from your own text, then press the one you want to copy it. Runs in your browser.
- Extract speaker notes from a PowerPointExtract speaker notes from a PowerPoint .pptx in your browser: each slide's notes under its title, as plain text or Markdown, ready to print, read or rehearse.
- Extract text from a PPTX fileExtract text from a PPTX file in your browser: every slide in order, tables included, with speaker notes if you want them, ready to copy or save as .txt.
- Find and replace onlineFind and replace online with plain text or JavaScript regex. Every match is highlighted and counted, and capture groups like $1 work in the replacement.
- HTML to text converterAn HTML to text converter that keeps headings, list items and table rows on their own lines, and drops scripts, styles and hidden elements.
- Keyword density checkerA keyword density checker for drafts and pages: one, two and three word phrases with counts and percentages, stopwords removed, and a focus keyword check.
- Lorem ipsum generatorPlaceholder text drawn as a page, a card grid, headlines, a list or rows of mock data. Latin, English, business or technical words, copied as HTML or Markdown.
- Markdown table generatorA Markdown table generator: type into a grid or paste CSV or spreadsheet cells, set each column's alignment, and copy a padded GitHub flavoured table.
- Meta title length checkerA meta title length checker that measures characters and pixel width against 60 and 160, and shows a desktop and a mobile search preview as you type.
- Number to words converterA number to words converter for cheques, invoices and contracts: dollars and cents or pounds and pence in English words, with the figures alongside.
- Online teleprompterA free online teleprompter: paste your script and it scrolls at a words per minute pace you set, with text size, mirror mode, full screen and a tap to pause.
- Presentation timerA presentation timer for speakers: set the talk length and warning points, then run a full screen countdown that turns amber, then red, and counts past zero.
- Readability checkerA readability checker with Flesch Reading Ease, Flesch-Kincaid grade and average sentence length, plus long sentences and passive voice marked in your text.
- Reading time calculatorReading time calculator: paste text or type a word count and see the minutes at 200, 238 and 300 words a minute, plus the figure to quote. Nothing stored.
- Remove duplicate linesRemove duplicate lines from any list: each line kept once in its original order, with options for capitals and spaces and a tally of what repeated. No upload.
- Remove extra spaces from textRemove extra spaces from text: double spaces, tabs, trailing spaces, special spaces and runs of blank lines, each rule a switch, with hidden characters shown.
- Remove line breaksRemove line breaks from pasted text: hard breaks joined into paragraphs, blank lines kept as paragraph breaks, split words rejoined. Nothing is uploaded.
- Slug generatorType a headline and watch the permalink build underneath, with accents folded, Greek and Cyrillic romanised and symbols spelled out. Batch mode included.
- Social character counterWrite the post once and see it as the feed will show it, with the limit on the preview, the fold marked, and a thread split when it runs long.
- Sort lines alphabeticallySort lines alphabetically A to Z or Z to A, by the number in each line, by length, or shuffle them. Language aware, with natural number order. No upload.
- Speaking time calculatorPaste a script and see it laid out on a clock, section by section, against the slot you have. Six measured speaking rates, and a rehearsal timer.
- Text diffCompare two versions line by line and word by word, with side by side or one column view. Runs in your browser, so a draft contract never leaves your machine.
- Word counterCount words, characters, sentences and paragraphs as you type, and see which sentences are hard work. Runs in your browser, nothing is uploaded or stored.
- Word frequency counterA word frequency counter that ranks every word in your text by how often it appears, with a chart of the top 15, a stopword switch and a CSV of the full list.
Design and print
- A0 poster checkerDrop a poster PDF and get bleed, trim and safe margins drawn on the artwork, with image density, fonts and type size checked against A0. Nothing is uploaded.
- Aspect ratio calculatorType a size and see your shape drawn against any target: the bars if you fit it whole, the crop if you fill it. Presets for print, screen and social.
- Bleed calculatorA bleed calculator for any print size: enter the finished size and the bleed to get the document size, the safe area and pixels, with a labelled drawing.
- DPI calculatorEnter a pixel size and a print size and see the sheet drawn at real proportions, the area your file covers sharply, and a plain verdict on whether it will do.
- Find the fonts used in a PowerPointSee the fonts used in a PowerPoint file: theme heading and body fonts, fonts set on each slide, masters and layouts, and which ones are embedded in the .pptx.
- Flyer size resizerDrop a flyer and see it refitted onto all ten builder canvases at once, each drawn at its true shape, with the ones that will print soft flagged in words.
- Grid calculator for designA grid calculator for design: enter canvas width, columns, gutter and margin to get the column width, a grid drawn to scale, guide positions and the CSS.
- Online stamp makerOnline stamp maker: a round, oval or box stamp with ring text, a centre word and a date, in four inks with a worn texture, saved as a transparent PNG or SVG.
- Paper size converterA paper size converter for A0 to A6, B sizes, Letter, Legal, Tabloid, DL or a custom size: millimetres, inches, points and pixels at 72, 150, 300 or any DPI.
- Pixels to inches converterConvert pixels to inches and centimetres at any DPI, or work back from a print size to pixels, with the largest print size at six common densities.
- Poster font size calculatorA poster font size calculator: enter the reading distance and the sheet to get the minimum title, heading and body text size in points, drawn to scale.
- Print scale percentage calculatorFind the print scale percentage between two paper sizes, such as A4 to A3 at 141.4%, the density a photo keeps after scaling, and the crop when shapes differ.
- PT to PX converterPT to PX converter: font sizes between points, pixels, em, rem and mm at 96 DPI for screens, 150 for the flyer canvas or 300 for print.
- QR code generatorMake a QR code for a link, WiFi network, contact card, SMS or location. It redraws as you type and tells you how large to print it. Nothing is uploaded.
- Safe zone checker for Reels, TikTok and ShortsA safe zone checker for vertical video: drop a 9:16 image or video frame and see the Reels, TikTok and Shorts interface areas shaded over it, then save a PNG.
- Trifold panel size calculatorTrifold panel size for A4, US Letter and more: the three panel widths for a roll fold or Z fold, the fold positions on both faces and a layout drawn to scale.
Data and forms
- Access code generatorAn access code generator that makes random codes of any length and character set with the Web Crypto source, one or 500 at a time. Never stored, never sent.
- Annual leave calculator for AustraliaAnnual leave calculator for Australia: 4 weeks of ordinary hours a year, 5 for shiftworkers, accrued with each hour worked, plus the leave loading in dollars.
- Break even calculatorBreak even calculator: units and revenue needed to cover fixed costs from your price and cost per unit, the contribution margin, and a cost and revenue chart.
- Business days calculatorCount business days between two dates or add working days to find a deadline. Skips weekends and the holidays you paste in. Free, instant, nothing to upload.
- CAGR calculatorCAGR calculator: the compound annual growth rate from a start value, an end value and years, the smooth path by year, and the simple average to compare.
- Consumption tax calculator for JapanConsumption tax calculator for Japan: add or remove 10% or 8% reduced tax on whole yen, totalled and rounded once per rate as a qualified invoice shows.
- Convert XLSX to CSVConvert XLSX to CSV in your browser without uploading: pick a sheet, choose comma, semicolon or tab, keep accents with a BOM, and dates come out as ISO dates.
- CSV and JSON converterConvert CSV to JSON and JSON back to CSV as you type. Both panes stay live, and a fault is flagged on the line it sits on. Nothing is uploaded.
- CSV splitterCSV splitter that runs in your browser: split a large CSV into parts of N rows or into one file per column value, header repeated in every part, as a zip.
- CSV to tablePaste CSV and read it as a sortable grid. Every column header shows its type, blanks and range, and any row with the wrong field count is named by line.
- Date difference calculatorA date difference calculator: pick two dates and get the days, weeks and days, months and days, and weekdays between them, with the end date in or out.
- Discount calculatorDiscount calculator: sale price and saving from a percent off, a second stacked discount worked out correctly, tax added after, and a sale price list.
- EU VAT calculator for all 27 member statesEU VAT calculator for all 27 member states: pick a country and its standard or reduced rate, add or remove VAT, and flag the reverse charge for B2B sales.
- Freelance rate calculatorFreelance rate calculator: work out an hourly and day rate from the income you want, business costs, weeks off, billable hours and a tax set aside.
- GST calculator for AustraliaGST calculator for Australia: add 10% GST or take it out by dividing by 11, line by line with GST free items, and see when a tax invoice is owed.
- GST calculator for New ZealandGST calculator NZ: add 15% GST or take it out with the 3/23 fraction, line by line with zero rated items, and see which taxable supply information applies.
- GST calculator for SingaporeGST calculator for Singapore: add 9% GST or take it out with 9/109, line by line with zero rated lines, and see when a simplified tax invoice is allowed.
- Holiday pay and entitlement calculator for the UKUK holiday pay calculator: 5.6 weeks capped at 28 days for fixed days, pro rata for part years, and 12.07% accrual and rolled up pay for irregular hours.
- Holiday pay calculator for New ZealandHoliday pay calculator for New Zealand: annual holiday pay at the greater of ordinary weekly pay or average weekly earnings, or 8% where it is lawful.
- HST calculator for every Canadian provinceHST calculator for Canada: pick a province and add or remove GST, HST, PST or QST, each tax shown on its own line, using the CRA rates from 1 April 2025.
- IBAN checkerIBAN checker: validate one IBAN or a list against the country's length and the mod 97 check digits, and see the bank code, branch and account parts.
- JSON formatterFormat and inspect JSON in your browser. A collapsible tree beside the text, errors pinned to the line and column, and warnings for duplicate keys.
- JSON to tableConvert JSON to a table in your browser: an array of objects becomes rows, nested keys become dot path columns, and the result downloads as CSV. No upload.
- Late payment interest calculator for IrelandLate payment interest calculator for Ireland: the ECB main refinancing rate plus 8 points for each half year, simple and daily, plus €40, €70 or €100.
- Late payment interest calculator for UK business debtsLate payment interest calculator for UK business debts: statutory interest at 8% over the reference rate, daily, plus the £40, £70 or £100 fixed sum.
- Long service leave calculator for NSWLong service leave calculator for NSW: 8.67 weeks after 10 years, 4.33 weeks per 5 years after that, and the pro rata test from 5 years when employment ends.
- Long service leave calculator for VictoriaLong service leave calculator for Victoria: one week per 60 weeks of continuous employment, access after 7 years, and the hours average when hours changed.
- Margin of error calculatorMargin of error calculator for survey results: the plus or minus on a percentage from your responses, confidence level and population, and the likely range.
- Merge CSV filesMerge CSV files in your browser: combine 2 to 50 CSVs into one, matching columns by header name, with a source file column and optional duplicate removal.
- Notice period calculator for AustraliaNotice period calculator for Australia: the Fair Work minimum of 1 to 4 weeks by service, the extra week over 45, the last day and pay in lieu at the full rate.
- NPS calculatorNPS calculator: paste 0 to 10 answers or counts per score to get the Net Promoter Score, the share of promoters, passives and detractors, and what moves it.
- Overtime calculator for CaliforniaOvertime calculator for California: daily overtime over 8 hours, double time over 12, the seventh day rule and weekly overtime, beside the federal rule.
- Pro rata salary calculatorPro rata salary calculator: scale a full time salary to part time hours, see the FTE, the monthly and hourly pay, and what a mid year start pays to 31 December.
- Profit margin calculatorProfit margin calculator: enter any two of cost, price, margin or markup and get the rest, plus the price for a target margin and a margin to markup table.
- Prompt Payment Act interest calculatorPrompt Payment Act interest calculator for US federal invoices: the Treasury rate, 30 day compounding on a 360 day year, capped at one year.
- Prorated rent calculatorProrated rent calculator: rent for a partial month by days in that month, a 365 day year and a 30 day banker's month, side by side for a move in or move out.
- Random name pickerRandom name picker: paste a list or CSV column and draw winners with the browser's cryptographic random source, duplicates removed, with a draw record.
- Redundancy pay calculator for AustraliaRedundancy pay calculator for Australia: the National Employment Standards scale of 4 to 16 weeks by years of service, the small business rule and notice owed.
- Rent increase calculator for OntarioRent increase calculator for Ontario: the yearly guideline, 1.9% for 2027 and 2.1% for 2026, the 2018 exemption, 12 months between rises and 90 days' notice.
- Salary to hourly calculatorSalary to hourly calculator: turn a yearly salary into an hourly rate, or an hourly rate into a salary, with daily, weekly, fortnightly and monthly pay.
- Sample size calculator for surveysSample size calculator for surveys: responses needed at 90, 95 or 99% confidence and your margin of error, with the small population correction.
- Severance pay calculator for OntarioSeverance pay calculator for Ontario: ESA termination pay of 1 to 8 weeks and severance pay of a week per year up to 26, with the $2.5 million payroll test.
- Severance pay calculator for South AfricaSeverance pay calculator for South Africa: one week's remuneration per completed year under BCEA section 41, monthly pay converted at 4 1/3 weeks, plus notice.
- SHA256 checksum onlineSHA256 checksum online: hash a file or text with SHA-256, SHA-1 and SHA-512 in your browser, and check it against the hash a publisher gives, with no upload.
- Statutory Maternity Pay calculator for the UKStatutory Maternity Pay calculator for the UK: the qualifying week, eligibility, 6 weeks at 90% of earnings then 33 weeks at £194.32 or 90%, week by week.
- Statutory notice period calculator for the UKNotice period calculator for the UK: the statutory minimum an employer or employee must give, the last day it reaches and notice pay at a weekly wage.
- Statutory redundancy calculator for IrelandStatutory redundancy calculator for Ireland: two weeks' pay per year of reckonable service plus one bonus week, part years pro rata, pay capped at €600.
- Statutory redundancy pay calculator for the UKStatutory redundancy pay calculator for the UK: years counted back from your last day, weeks by age band, and the £751 weekly cap from 6 April 2026.
- Tenancy deposit cap calculator for EnglandTenancy deposit calculator for England: weekly rent from monthly rent, the 5 week cap (6 weeks at £50,000 a year), the holding deposit and the 30 day rule.
- Time card calculatorTime card calculator: in and out times for each day, unpaid breaks taken off, overnight shifts handled, weekly hours as hours:minutes and decimals, and pay.
- Time zone converterA time zone converter for one date and time across as many zones as you add, with next day and previous day marked and daylight saving handled for that date.
- Unix timestamp converterA Unix timestamp converter for seconds or milliseconds: read it as UTC, your local time and ISO 8601, or turn a date back into a timestamp. Negative dates work.
- UTM builderUTM builder: add utm_source, utm_medium, utm_campaign, utm_term and utm_content to a link, tidy the names, and make one tagged link per channel.
- UUID generatorA UUID generator for version 4 random ids and version 7 time ordered ids, up to 1,000 at once, made with the browser's crypto source. Copy all or download.
- VAT calculator for IrelandVAT calculator for Ireland: add or remove VAT at 23%, 13.5%, 9%, 4.8% or 0%, line by line on one invoice, with the reverse formula explained.
- VAT calculator for South AfricaVAT calculator for South Africa: add 15% VAT or take it out with 15/115, line by line with zero rated lines, plus the SARS registration thresholds.
- VAT calculator for the UKVAT calculator UK: add VAT at 20%, 5% or 0% or take it out with the VAT fraction, line by line on one invoice, and see when a simplified invoice is allowed.
Video
- Audio waveform viewerAn audio waveform viewer for MP3, WAV, OGG and M4A: the waveform, peak and average level in dBFS, clipped samples and silent stretches, in your browser.
- Extract a frame from a videoOpen a video, jump with a filmstrip, step one frame at a time and save the exact frame as PNG, JPEG or WebP at full resolution. Nothing is uploaded.
- Online voice recorderOnline voice recorder that keeps everything on your device: record the microphone, see the waveform, trim both ends, and save as the recorded file or WAV.
- Screen recorder onlineA free screen recorder online: record a screen, window or tab with or without your microphone, review it, and save a WebM file. Nothing to install, no upload.
- Shift subtitles forward or backShift subtitles earlier or later by any number of seconds, stretch them for a frame rate change, or sync two cues to the video. SRT and VTT, in your browser.
- SRT to textTurn SRT or VTT subtitles into plain text: timestamps and numbers removed, lines joined into paragraphs, speaker names kept if you want. Download as .txt.
- SRT to VTT converterConvert SRT to VTT in your browser: commas in timings become dots, a WEBVTT header is added, and unsupported tags are dropped and listed. No upload.
- Timecode calculatorTimecode calculator: add or subtract SMPTE timecodes and convert them to frames and seconds at 23.976, 24, 25, 29.97 drop frame, 30, 50 and 60 fps.
- Video contact sheet makerMake a video contact sheet in your browser: frames sampled evenly across the clip, laid out in a grid with timestamps and saved as one PNG or JPEG. No upload.
- Video file size calculatorVideo file size calculator: size from bitrate and length, or the bitrate that fits an upload limit, with 1080p and 4K presets from YouTube's recommended rates.
- Video metadata viewerA video metadata viewer for MP4, MOV and WebM: duration, resolution, aspect ratio, frame rate, bitrate, codecs and audio, read in your browser. No upload.
- VTT to SRT converterConvert VTT to SRT in your browser: cues are numbered, dots in timings become commas, and positioning, regions and styles are dropped and listed. No upload.