Free Online Tools

A growing collection of free online tools for images, PDFs, text, code, calculations and everyday tasks. Most of them run entirely inside your browser, so your files and data never leave your device.

Image Tools

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Image CompressorShrink JPG, PNG and WebP files in your browser — nothing is uploaded.Image ConverterConvert JPG, PNG, WebP, AVIF and HEIC images to another format in bulk.Background RemoverCut the subject out of a photo and get a transparent PNG — processed on your device.Image Editor ToolkitRotate, flip, resize, round the corners and add a border to any image.Image UpscalerEnlarge an image 2×, 3× or 4× with high-quality resampling and optional sharpening.Product Photo MakerClean up a product shot: cut the plain background, square it up and add a soft shadow.ID Photo MakerCrop a portrait to standard ID photo sizes, swap the background colour and set the print DPI.Photo EditorAdjust brightness, contrast, colour and vignette, with one-click filter presets.Long Image StitcherJoin several images into one long vertical or horizontal image.Avatar MakerCrop any photo into a round or rounded avatar at the exact pixel size you need.Photo RestoreRevive scanned and fading photos: fix colour casts, restore contrast, reduce noise and sharpen.

PDF & Documents

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PDF ToolkitMerge, split, rotate, reorder and extract pages from PDF files locally.Image to PDFCombine JPG, PNG and WebP images into a single PDF, one image per page.PDF Page OrganizerReorder, rotate, delete and insert pages, then add a watermark or page numbers — all in your browser.Image to Text (OCR)Pull the text out of a photo or scan, with the engine running inside your browser.Image to ExcelTurn a photo or scan of a table into an editable spreadsheet, without retyping it.Invoice and Receipt ReaderPull the invoice number, date and totals out of a receipt photo, with the source line shown for every field.Resume BuilderFill in a form, see the resume take shape, and print it to PDF — with everything saved as you type.

Text & Writing

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Word CounterCount words, characters, sentences and reading time, with Chinese and English counted the way each language actually works.AI Text SummarizerTurn a long document into a short summary you can act on, in the language you are reading it in.AI Text RewriterRewrite a passage in a different tone, or make it shorter, without losing the facts.AI Text HumanizerFix the specific habits that make writing read as machine-generated — and nothing more than that.Fancy Font GeneratorTurn plain text into 22 Unicode styles that survive copy and paste into social posts and bios.Markdown EditorWrite Markdown on the left, read the formatted result on the right, then export the HTML.Typing Speed TestMeasure your typing speed and accuracy against a passage, with the timing started by your first keystroke.

Developer Tools

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JSON FormatterFormat, minify, sort and validate JSON, with errors pinned to a line and column.CSV to JSON ConverterConvert CSV and TSV to JSON, or JSON back to CSV, with quoted fields handled correctly.Base64 Encoder & DecoderEncode text to Base64 or decode it back, with full UTF-8 support.Hash & UUID GeneratorMD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes, plus UUID v4 and v7 generation.Regex TesterTest a regular expression against your text and see every match, group and replacement.Password GeneratorCryptographically random passwords with an honest entropy readout.Timestamp ConverterConvert Unix timestamps to readable dates and back, in seconds or milliseconds.Number Base ConverterConvert between binary, octal, decimal, hex, base 32 and base 36 without losing precision.SVG OptimizerStrip the junk out of an SVG file and export a crisp PNG at any size.Table Format ConverterConvert between JSON, CSV, TSV, Markdown tables and HTML tables.

Calculators & Conversion

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Scientific CalculatorAn expression calculator that accepts real mathematical notation, with a running history.Unit ConverterConvert length, weight, temperature, area, volume and speed units instantly.Currency ConverterConvert between thirty currencies using daily reference rates, with the direction shown both ways.Unit Price ComparisonWork out which package is actually cheaper per unit, and keep unlike units apart.Everyday CalculatorsPercentages, discounts, ratios and basic statistics in one page, with the formula shown.Loan Payment CalculatorCompare equal-installment and equal-principal repayment, with a full amortization schedule.BMI and Calorie CalculatorBMI, basal metabolic rate and daily energy needs, with the assumptions stated plainly.Function GrapherPlot y equals f of x from a typed expression, with automatic axis scaling and a live readout.

Audio & Video

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Screen RecorderRecord your screen, a window or a tab, with optional system sound and microphone — no upload, no watermark, no time limit.Speech to TextDictate or transcribe speech live using your browser's speech recognition.Subtitle GeneratorTurn a script into a timed SRT or VTT file that people can actually read at the pace of speech.

Design & Creative

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QR Code GeneratorMake QR codes for links, Wi-Fi, contact cards, email, SMS and phone numbers — and check that they actually scan.Colour ToolsConvert between colour formats, check text contrast against WCAG, and build a palette that holds together.Meme MakerAdd the classic top-and-bottom captions to any image, with outlines that stay readable over busy backgrounds.WhiteboardSketch an idea with a pen, line, rectangle or ellipse, undo freely, and export a PNG.Mind MapBuild a mind map as an outline, see it laid out automatically, and export it as SVG or PNG.

Everyday & Productivity

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Date CalculatorDays between two dates, adding and subtracting days, weeks, months and years, and an exact age — all worked out in your browser.Time Zone ConverterOne moment, seventeen cities at once — with live offsets, day changes and daylight saving marked.Pomodoro TimerA 25/5 focus timer that still keeps honest time when the tab has been in the background for half an hour.Random PickerDraw names or numbers from a random source whose fairness can be argued, not merely asserted.