⚖️BMI CalculatorHealth · Metric/ImperialWork out your Body Mass Index in metric or imperial units, see your WHO / Asian category and the healthy weight range for your height.％Percentage CalculatorMath · InstantFive percentage calculators in one: find a percentage of a number, work out what percent one number is of another, percentage change, increase/decrease and percentage difference.
Unit ConverterUNITS · ALLConvert length, weight, area, volume, speed, data, time, pressure, energy and temperature.
Unit ConverterUNITS · ALLConvert length, weight, area, volume, speed, data, time, pressure, energy and temperature. 
Word CounterTEXT · COUNTERCount words, characters, sentences and paragraphs — with CJK support and reading time.AaCase Converter (with Chinese Amount)Text · 大写金额Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase and snake_case — plus turn a number into Chinese financial uppercase (壹贰叁元角分) for invoices, cheques and receipts. 
QR Code GeneratorQR · PNG/SVGMake QR codes for links, text, Wi-Fi, email, SMS or phone numbers — custom size, colors and margin, downloaded as PNG or SVG.🔑Password GeneratorSecurity · CSPRNGCreate strong random passwords or memorable passphrases with a cryptographically secure generator — choose length, character sets, and see the strength estimate. 
Base64 Encode/DecodeCODEEncode or decode text and files to Base64 instantly in your browser.
Hash GeneratorCODE · MD5/SHAGenerate MD5, SHA-1, SHA-256 and SHA-512 hashes from text, right in your browser.
URL Encoder / DecoderCODE · URIPercent-encode or decode URLs and query values without uploading them anywhere.
JSON FormatterCODE · JSONValidate, pretty-print and minify JSON with exact error positions — no data leaves the browser.⇄Diff CheckerText · Line diffCompare two blocks of text and see exactly what changed — line-by-line additions and deletions, side-by-side or unified, with ignore-case and ignore-whitespace options.⏱Timestamp ConverterTime · Unix epochConvert Unix timestamps to readable dates and back, with seconds or milliseconds auto-detected, plus a live clock showing the current epoch in several formats. 
PNG to WebPIMAGEConvert PNG images to WebP format right in your browser. Fast & private.
JPG to PNGIMG · JPG→PNGConvert JPG photos to lossless PNG in your browser. Batch, free, no upload.
JPG to WebPIMG · JPG→WEBPConvert JPG to WebP in your browser and cut photo size by ~30%. Free, batch, no upload.
PNG to JPGIMG · PNG→JPGConvert PNG to JPG online — transparency flattened to white, tiny files, no upload.
WebP to JPGIMG · WEBP→JPGConvert WebP to JPG in your browser — opens everywhere, transparency flattened to white.
Compress ImageIMG · COMPRESSShrink JPG, PNG and WebP photos by up to 80% with a live quality slider. Runs in your browser.
Resize ImageIMG · RESIZEResize photos to exact pixel dimensions or a percentage, batch mode, aspect ratio lock.
Rounded CornersIMG · ROUNDGive photos rounded corners and export transparent PNGs. Live radius slider, batch mode.
+1
View more ›