Developer

Generate passwords, UUIDs, JWTs, hashes, and developer utilities.

37 ready tools out of 40 listed in this workflow.

All tools

Password GeneratorReadyGenerate cryptographically strong random passwords with entropy display.
Password StrengthReadyEstimate entropy and crack time of any password.
UUID GeneratorReadyGenerate RFC 4122 v4 UUIDs in bulk.
UUID ValidatorReadyValidate and inspect UUIDs — version and variant.
JWT InspectorReadyDecode JWT header/payload and verify HS256/384/512 signatures.
JWT BuilderReadyBuild and sign JSON Web Tokens locally with HMAC-SHA.
JWT Expiry CheckerReadyRead iat, nbf, and exp claims and see time until expiry.
Base64 Encoder/DecoderReadyEncode plain text to Base64 or decode Base64 — UTF-8 safe.
Base ConverterReadyConvert between binary, octal, decimal, hex, base32, base36.
SHA Hash GeneratorReadyGenerate SHA-1, SHA-256, SHA-384, SHA-512 hashes of text or files.
HTTP Status LookupReadyReference for all HTTP status codes with descriptions.
MIME Type LookupReadyFind file extension by MIME type and vice versa.
Port LookupReadyLook up well-known TCP/UDP service ports.
Cron BuilderReadyBuild cron expressions from presets and field breakdowns.
Cron ValidatorReadyValidate and describe 5-field cron expressions.
Lorem Ipsum GeneratorReadyGenerate placeholder text in paragraphs, sentences, or words.
Markdown PreviewReadyRender Markdown to HTML live, fully client-side.
Text CompareReadyLine-by-line diff between two text blocks.
Word CounterReadyLive counts of words, characters, sentences, and reading time.
Sort LinesReadySort lines alphabetically, by length, or naturally.
Duplicate Line RemoverReadyRemove duplicate lines while keeping first or last occurrence.
Slug GeneratorReadyGenerate clean URL slugs from any text.
Reverse TextReadyReverse text by characters, words, or lines — Unicode-safe.
Color PickerReadyPick a color and copy in HEX, RGB, HSL.
OAuth URL BuilderReadyCompose OAuth 2.0 authorization URLs with PKCE support.
URL Encoder / DecoderReadyPercent-encode or decode URLs and query strings — UTF-8 safe.
HTML Entity Encoder / DecoderReadyEncode or decode HTML entities — named and numeric.
Character CounterReadyCount characters, words, sentences, lines, and reading time.
Shuffle LinesReadyRandomly shuffle the order of lines in your text.
Empty Line RemoverReadyRemove blank lines, collapse extra blanks, and trim lines.
Random String GeneratorReadyGenerate cryptographically random strings with custom charsets.
HTML PreviewReadyLive-render HTML in a sandboxed iframe as you type.
BBCode ConverterReadyConvert between BBCode and HTML in both directions.
Unicode LookupReadyInspect each character's code point, HTML entity, and UTF-8 bytes.
OAuth PKCE GeneratorReadyGenerate a PKCE code verifier and S256 challenge pair.
CORS Header GeneratorReadyBuild Access-Control-* response headers from a form.
User-Agent ParserReadyParse a User-Agent string into browser, OS, and device.
Markdown EditorPlannedEdit Markdown with a live side-by-side preview.
HTML ↔ MarkdownPlannedConvert between HTML and Markdown both ways.
Emoji PickerPlannedSearch and copy emoji with shortcodes.