Tools
Tools
96 tools · Free, no sign-up · Private by design
Free online tools for everyday work: convert and compress images, count words, generate QR codes, check PDFs, pick colours or encode text.
Almost everything runs inside your browser: your files are never uploaded to a server and there is no sign-up. The few tools that need the BAI server, such as Word to PDF, say so clearly and delete the file as soon as they finish.
Most used
8Image converterConvert images between PNG, JPG, WEBP, JXL, GIF, BMP, TIFF, ICO and ICNS, with resizing and quality options.Compress imageShrink your images by adjusting quality and compare the file size before and after.PNG to JPGConvert PNG images to JPG, choosing the quality and a background colour for transparent areas.Resize imageResize an image in pixels or by percentage, keeping the aspect ratio if you want.Word counterCount words, characters, sentences and paragraphs and estimate reading time.QR code generatorCreate QR codes for websites, wifi, contacts or text, with your own colours, shapes and logo.Colour converterConvert a colour between HEX, RGB, HSL, OKLCH, LAB, LCH and OKLAB instantly.Base64 encodeTurn text into Base64 instantly, with full support for accents and emoji (UTF-8).
PDF page counterInstantly count the pages in a PDF and check their sizes, without uploading it anywhere.PDF preflight checkCatch problems in a PDF before it goes to print: bleed, fonts, colour and page sizes.Word to PDFConvert Word, ODT or RTF documents to PDF on the BAI server. The file is deleted when it is done.
Image
28Artwork noise textureAdd a layer of colour noise to your artwork to give it a printed texture.Batch resize imagesResize lots of images at once and download them together as a ZIP.Combine imagesJoin several images into one, side by side, stacked or in a grid.Compress imageShrink your images by adjusting quality and compare the file size before and after.Convert image to BMPConvert PNG, JPG or WEBP into a 24- or 32-bit BMP bitmap.Convert image to ICOCreate Windows ICO icon files, with one or several sizes inside the same file.Convert image to TIFFConvert images to lossless TIFF, handy for print and archiving.Dominant colour finderFind the colour that dominates a photo and the palette that goes with it.Favicon generatorCreate every favicon your site needs (16, 32, 180, 192 and 512 px) from a single image.Image colour pickerGrab the HEX, RGB or HSL code of any pixel in an image with a precision loupe.Image converterConvert images between PNG, JPG, WEBP, JXL, GIF, BMP, TIFF, ICO and ICNS, with resizing and quality options.Image splitterCut an image into a grid of equal tiles and download them separately.Image to Base64Turn an image into a Base64 string ready to paste into your HTML or CSS.JPG to PNGConvert JPG photos to PNG with no further quality loss, one at a time or in batches.JPG to WEBPConvert JPG photos to WEBP and cut their file size for the web while keeping good quality.Paste image from clipboardPaste a screenshot or copied image and download it as a PNG file straight away.Placeholder image generatorCreate stand-in images at any size and colour for mock-ups and prototypes.PNG to JPGConvert PNG images to JPG, choosing the quality and a background colour for transparent areas.PNG to WEBPConvert PNG to WEBP so your website loads faster, keeping transparency intact.Resize imageResize an image in pixels or by percentage, keeping the aspect ratio if you want.SVG optimiserClean up and slim down your SVG files by removing unnecessary code.SVG to imageConvert SVG files to PNG, JPG, WEBP or other bitmap formats.SVG to JPGConvert SVG vector graphics into a JPG image at whatever size you need.Trim transparent edgesStrip the transparent margins from a PNG and crop it to its smallest size.Vectorise image (to SVG)Turn a PNG, JPG or WEBP image into an editable SVG vector graphic.Watermark an imagePlace your logo as a watermark over an image, with custom position, size and opacity.WEBP to JPGConvert WEBP images to JPG, the format every program, phone and upload form accepts.WEBP to PNGConvert WEBP images to PNG so any program can open them, transparency included.
Text
25Barcode generatorGenerate EAN-13, Code 128, Data Matrix, PDF417, Aztec and more, ready to print.Base64 decodeDecode a Base64 string and get the original text back.Base64 encodeTurn text into Base64 instantly, with full support for accents and emoji (UTF-8).Capitalise wordsCapitalise the first letter of every word in your text.Character counterCount the characters in a text, with and without spaces, for posts, ads or meta descriptions.Compare textsCompare two versions of a text and highlight what was added, removed or changed.HTML entity decodeTurn HTML entities such as & or é back into normal characters.HTML entity encodeConvert <, >, &, quotes and special characters into safe HTML entities.Lowercase converterTurn any text into lowercase in one click, handy for tidying all-caps text.Paragraph counterCount the paragraphs in a text as you paste it, along with words and lines.QR code generatorCreate QR codes for websites, wifi, contacts or text, with your own colours, shapes and logo.Reading time calculatorWork out how many minutes a text takes to read, ideal for articles and blogs.Remove duplicate linesRemove repeated lines from a list, keeping the first occurrence of each.Remove empty linesDelete the blank lines from a text or list in one go.Remove extra spacesStrip double spaces, stray tabs and leading or trailing whitespace from every line.Sentence case converterCapitalise only the first letter of each sentence, as in normal prose.Sentence counterCount the sentences in your text to keep an eye on pace and readability.Shuffle linesRandomly shuffle the lines of a list, for draws or rotas.Sort lines alphabeticallySort the lines of a list A to Z, Z to A or by length.Speaking time calculatorEstimate how long a text takes to read aloud: scripts, radio spots, videos or speeches.Text scratchpadA notepad with tools to change case, clean up lines, sort, and find and replace.Uppercase converterTurn any text into UPPERCASE in one click, accents included.URL decodeTurn the %20s and %C3%B1s in a URL back into readable text.URL encodeEncode text so it can be used safely in a URL or query parameters.Word counterCount words, characters, sentences and paragraphs and estimate reading time.
Encoder and decoderEncode and decode Base64, URLs and HTML entities, and generate MD5 and SHA hashes.HEX to RGBConvert a hexadecimal colour code to RGB (and other formats) instantly.HSL converterConvert colours from HSL to HEX or RGB and back, with a live preview.Markdown editor with previewWrite in Markdown and see the formatted result as you type, distraction-free.Meta tag generatorGenerate a page's meta, Open Graph and Twitter tags with a live preview.Regex testerTest your regular expressions live and see what matches and which groups are captured.RGB to HEXConvert RGB values to a hex code for CSS, design work or brand guides.SHA hash generatorCompute the SHA-1, SHA-256, SHA-512 or MD5 hash of any text in your browser.Tailwind CSS cheat sheetA quick reference to Tailwind CSS classes and the CSS they produce.Timestamp and time zone converterConvert timestamps into readable dates, add or subtract time and compare time zones.Unix timestamp converterTurn Unix time in seconds or milliseconds into a date and time, and back again.
Algebra calculatorSimplify, factor, solve equations and take derivatives symbolically.Graphing calculatorPlot mathematical functions and explore their graphs with zoom and pan.Number base converterConvert numbers between decimal, hexadecimal, binary and octal.Scientific calculatorA full scientific calculator with trigonometry, logarithms and history.Unit converterConvert length, weight, temperature, volume, area, speed and data units.
Colour blindness simulatorSee how people with different types of colour blindness perceive your colours and images.Colour converterConvert a colour between HEX, RGB, HSL, OKLCH, LAB, LCH and OKLAB instantly.Colour harmony generatorGenerate complementary, analogous or triadic schemes from a base colour.Colour palette generatorBuild harmonious colour palettes, lock the shades you like and export them.Contrast checkerMeasure text-to-background contrast and check it against WCAG AA and AAA.Gradient generatorDesign linear, corner and mesh gradients and export them as CSS or an image.Palette collectionBrowse over 280 curated colour palettes and open them in the generator to copy or tweak their codes.Palette extractorPull the colour palette out of any photo or image and export it in several formats.Tailwind shade generatorGenerate a full 50–950 shade scale from one colour for use in Tailwind CSS.
Crop images for social mediaCrop your images to the right ratios for Instagram, Bluesky, Threads and more.Seamless carousel generatorSplit a panoramic image into slides for a seamless Instagram carousel.Square matte generatorPut portrait or landscape photos on a square background so you can post them uncropped.
Font file explorerOpen a TTF, OTF, WOFF or WOFF2 font file and try it out with your own text at several sizes.Large typeShow a text full screen in huge letters so it can be read from across the room.Line height calculatorWork out the recommended line height for your font size, in pixels and unitless for CSS.Paper sizesDimensions of A, B, C, US and other paper formats in millimetres, inches and pixels.PX to REM converterConvert pixels to rem and back based on your site's root font size.Typography calculatorConvert between points, picas, ciceros, agates, inches and millimetres.Unicode glyph browserFind and copy symbols, arrows, special letters and any Unicode character.