All tools
60 tools, all client-side. Search by name or by what you're trying to do.
- JSON FormatterFormat, validate and minify JSON.
- UUID GeneratorGenerate v4 and v7 UUIDs in bulk.
- Base64 Encoder / DecoderEncode and decode Base64, including URL-safe.
- Hash GeneratorSHA-1, SHA-256, SHA-384 and SHA-512 digests.
- JWT DecoderInspect JWT headers, claims and expiry.
- URL Encoder / DecoderPercent-encode URLs and parse query strings.
- Timestamp ConverterUnix time to dates, and back.
- App Icon GeneratorOne image to every iOS, Android and web size.
- Color ConverterHEX, RGB, HSL and OKLCH in sync.
- Text DiffCompare two blocks of text line by line.
- YAML FormatterValidate, pretty-print and inspect YAML.
- SQL FormatterBeautify SQL across 12 dialects.
- Markdown PreviewerRender GitHub-flavored Markdown live.
- Regex TesterTest regex with live matches and groups.
- Lorem Ipsum GeneratorPlaceholder text in words, sentences or paragraphs.
- Password GeneratorStrong, random passwords from crypto.getRandomValues.
- QR Code GeneratorText or URLs to a downloadable QR PNG.
- Cron ExplainerTranslate a cron expression to plain English.
- Number Base ConverterBinary, octal, decimal, hex and any radix.
- JSON → TypeScriptInfer TypeScript interfaces from JSON.
- HTML Entity EncoderEscape and unescape HTML entities.
- Case ConvertercamelCase, snake_case, kebab-case and more.
- JSON ↔ CSV ConverterTurn JSON arrays into CSV, and back.
- File ChecksumSHA digests of any file, in-browser.
- Image to Base64Images to data URIs for embedding.
- SVG to PNGRasterize SVG at any size.
- EXIF Viewer & StripperSee what your photos leak, then clean them.
- ULID & Nano ID GeneratorSortable ULIDs and compact Nano IDs.
- Chmod CalculatorPermissions to octal and back.
- Cron BuilderPoint, click, get a cron expression.
- HMAC GeneratorKeyed hashes for webhook signatures.
- TOTP Generator2FA codes from a Base32 secret.
- TOML ConverterTOML to JSON, YAML and back.
- Slug GeneratorTitles to URL-safe slugs in bulk.
- List ConverterLines to CSV, JSON arrays and SQL IN lists.
- Unicode InspectorCode points, UTF-8 bytes and hidden characters.
- JSON → Zod & JSON SchemaInfer Zod schemas and JSON Schema from JSON.
- SVG OptimizerShrink SVGs with SVGO, client-side.
- Image Resizer & ConverterResize images and switch format.
- Meta Tag GeneratorSEO and social <head> tags from a form.
- Barcode GeneratorCODE128, EAN-13, UPC and more.
- Keycode InfoPress a key, see every event property.
- Subnet CalculatorCIDR to netmask, range and hosts.
- HTTP Status CodesEvery code, in plain English.
- MIME TypesExtensions to Content-Type, searchable.
- htpasswd GeneratorBasic-auth lines with bcrypt.
- CSS FormatterBeautify or minify CSS.
- Time Zone ConverterCompare times across zones, past or future.
- JS / JSON5 BeautifierFormat and minify JavaScript and JSON5.
- HTML Formatter / MinifierFormat and compress HTML markup.
- XML FormatterFormat XML and convert to JSON.
- Word & Character CounterCount words, characters, lines and sentences.
- RSA / EC Key GeneratorGenerate RSA and EC key pairs in-browser.
- JSON DiffCompare two JSON structures side by side.
- X.509 Certificate DecoderInspect PEM or DER X.509 certificates.
- Bcrypt GeneratorHash and verify passwords with bcrypt.
- Tailwind Palette GeneratorGenerate a full Tailwind color scale from one hex.
- IPv6 Subnet CalculatorIPv6 CIDR to network range and hosts.
- Data URI DecoderDecode Base64 and URI-encoded data URIs.
- systemd Timer ↔ Cron ConverterConvert between systemd OnCalendar and cron.
60 of 60 tools