Free online tools that run in your browser
Every everyday tool. Zero uploads.
Convert, compress, calculate, format and test — instantly and privately. All tools run on your own device, so your files stay with you.
- Private by designFiles are processed locally in your browser and never uploaded.
- InstantNo queues, no sign-up, no waiting for a server.
- FreeEvery tool is free to use, with no limits or watermarks.
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Compress PDFShrink PDF files for email and uploads — losslessly, or with stronger compression for scans and image-heavy documents.Delete PDF PagesRemove blank, duplicate or unwanted pages from a PDF by clicking them or typing page numbers.JPG to PDFCombine photos and images into one PDF, with A4, Letter or image-sized pages — in your browser.Merge PDFCombine several PDFs into one document in the order you choose — without uploading anything.Organize PDFDrag pages into a new order, rotate or remove them, and download the reorganised PDF.PDF to JPGTurn PDF pages into sharp JPG or PNG images at the resolution you need — right in your browser.Rotate PDFFix sideways or upside-down pages — rotate the whole PDF or single pages and save it permanently.Split PDFSplit a PDF into single pages, fixed-size parts or custom ranges, or extract just the pages you need.
Image
Browse Image tools →Compress ImageMake images smaller by quality or to an exact target size in KB — in batches, without uploading.Crop ImageDrag a crop box or enter exact pixels to crop photos to any shape — square, 16:9, 4:5 and more.HEIC to JPG ConverterConvert iPhone HEIC photos to JPG or PNG that open everywhere — privately, in your browser.Image ConverterConvert photos and graphics between JPG, PNG, WebP and AVIF — in batches, without uploading.JPG to PNG ConverterConvert JPG and JPEG images to lossless PNG files — quickly, privately and in batches.PNG to JPG ConverterTurn PNG images into smaller, widely compatible JPG files — in bulk and without uploading.Remove EXIF DataStrip GPS location, camera details and other hidden metadata from photos before you share them.Resize ImageResize photos to exact pixel sizes or by percentage — one image or a whole batch, without uploading.WebP to PNG ConverterConvert WebP images saved from websites into PNG or JPG files that open in every app.
Case ConverterChange text to any letter case — from Title Case to snake_case — and see every format at once.Diff CheckerPaste two versions of a text and instantly see what was added, removed or changed.Lorem Ipsum GeneratorCreate as much Lorem Ipsum dummy text as you need — paragraphs, sentences or an exact word count.Remove Duplicate LinesDelete repeated lines from lists and text, with options to ignore case, trim spaces and sort.Word CounterCount words, characters, sentences and paragraphs as you type, with reading and speaking time.
Developer
Browse Developer tools →Base64 Encode & DecodeConvert text and files to Base64 and back, with full UTF-8 and Base64URL support.Hash GeneratorCalculate MD5 and SHA checksums for text or files and verify downloads against a known hash.JSON Formatter & ValidatorBeautify, minify and validate JSON instantly, with clear error locations.JWT DecoderDecode JSON Web Tokens, check expiry and verify HMAC signatures — privately, in your browser.Regex TesterWrite a regular expression and see every match, capture group and replacement live.Unix Timestamp ConverterConvert epoch timestamps to readable dates and dates to Unix time, with automatic seconds/milliseconds detection.URL Encode & DecodePercent-encode text for URLs or decode encoded URLs and query strings back to readable text.UUID GeneratorGenerate secure random UUIDs (v4) or sortable time-based UUIDs (v7), singly or in bulk.
Generators
Browse Generators tools →Barcode GeneratorGenerate printable barcodes in all common formats, with check-digit validation and PNG/SVG export.Password GeneratorCreate strong, truly random passwords in your browser, with a live strength meter.QR Code GeneratorMake QR codes for links, Wi-Fi, email and phone numbers — free forever, with PNG and SVG downloads.Random Number GeneratorPick random numbers in any range — one at a time or thousands, with no repeats if you need.
Converters
Browse Converters tools →Calculators
Browse Calculators tools →Age CalculatorFind your exact age in years, months and days — and how many days until your next birthday.BMI CalculatorWork out your Body Mass Index and the healthy weight range for your height, in metric or imperial units.Date Difference CalculatorCount the days between two dates — including business days — or add and subtract time from a date.Loan CalculatorWork out your monthly payment, total interest and full amortization schedule for any fixed-rate loan.Percentage CalculatorSolve the four everyday percentage problems — percent of, what percent, percent change and original value.
Device Test
Browse Device Test tools →Dead Pixel TestFill your screen with solid colours to spot dead pixels, stuck pixels and backlight bleed.Keyboard TestPress keys to check that every one registers — find dead, stuck or ghosting keys in seconds.Microphone TestCheck that your microphone works with a live volume meter, waveform and quick playback recording.Refresh Rate TestMeasure your display's real refresh rate in Hz, with frame time, jitter and a live smoothness graph.Screen ResolutionSee your screen resolution, browser viewport size, pixel ratio and other display details instantly.Speaker TestCheck left and right channels, bass and treble on speakers and headphones with test sounds.Touch Screen TestCheck multi-touch support and find unresponsive areas on phones, tablets and touch laptops.Webcam TestCheck your camera with a live preview, real resolution and frame rate, and take a test snapshot.