QuackyardPassword Generator
Make strong passwords and passphrases from your browser’s own randomness, and check how strong a password is.
Drawing bytes from your browser’s random source…
Drawn here, in your browser, from the bytes crypto.getRandomValues handed over. When a byte would make one character likelier than another it is thrown away and a fresh one drawn in its place, so no character in the pool has an edge over the rest — that is what drawing without modulo bias means.
More in the yard
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- Bit FlipFlip bits until the board makes the target number: twelve levels from place values to hex, masks and shifts.
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- CSV ↔ JSON ConverterConvert between CSV and JSON: RFC 4180 quoting, an auto-detected delimiter, typed values, and a preview of the table.
- Date CalculatorCount the days between two dates, and add or subtract days, weeks, months and years.
- Hash GeneratorHash text with MD5, SHA-1, SHA-256, SHA-384 and SHA-512 at once, and check a hash against it.
- Hex Color GameSee a colour, guess its hex code: ten levels from greys to near-miss pairs, judged by CIEDE2000.
- HTTP Status CodesLook up any HTTP status code: what it means, when to use it, and what clients do with it.
- JSON Formatter & ValidatorFormat, minify and check JSON, and see the exact line and column where it breaks.
- JSON ↔ YAML ConverterConvert between JSON and YAML: anchors resolved, multi-document files handled, and output that round-trips.
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- Markdown Editor & PreviewWrite Markdown, see it rendered, and copy the HTML.
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- QR Code GeneratorMake a QR code for a link, Wi-Fi, an email or a phone number, and download it as SVG or PNG.
- Regex TrainerLearn regular expressions one level at a time: match one list, skip the other, in as few characters as you can.
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- SQL FormatterFormat SQL for reading, or minify it, in the dialect you use.
- Diff CheckerCompare two texts line by line, word by word or character by character, and copy the unified diff.
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- Word CounterCount words, characters, sentences and paragraphs as you type, with reading and speaking time.