Developer Tools
Format JSON, validate syntax, encode/decode Base64 and URLs with developer-first utilities.
JSON FormatterPopular
Prettify, format, indent, and minify JSON data with instant syntax error detection.
JSON Validator
Validate JSON syntax with detailed error pointers, character positions, and RFC 8259 compliance.
Base64 EncoderPopular
Encode plain text or binary files into Base64 format with UTF-8 support.
Base64 DecoderPopular
Decode Base64 encoded strings back to plain text or preview and download files.
URL Encoder
Encode characters in URLs and query parameters for safe web transmission.
URL Decoder
Decode percent-encoded URLs and query parameters back into human-readable text.
HTML Formatter & MinifierPopular
Beautify messy HTML code with clean indentation, or minify HTML payloads for maximum loading speed.
CSS Formatter & Minifier
Format, indent, and organize CSS stylesheets or compress them with CSS minification.
Hash GeneratorPopular
Generate cryptographic SHA-256, SHA-512, SHA-384, and SHA-1 hashes instantly using Web Cryptography.
Color ConverterPopular
Convert color codes between HEX, RGB, RGBA, HSL, HSLA, and CMYK with live color picker.
Unix Timestamp ConverterPopular
Convert Unix epoch timestamps to human-readable dates (UTC, ISO 8601, Local) and vice versa.
JWT DebuggerPopular
Decode and inspect JSON Web Tokens (JWT) headers, claims, and verify expiration dates safely in browser.
Markdown Live PreviewerPopular
Write Markdown with real-time rendered preview, live HTML code generator, and HTML export.
Text Diff CheckerPopular
Compare two texts side-by-side or line-by-line to highlight additions, deletions, and modifications.
Binary & Text Converter
Translate plain text to binary code (0s and 1s), binary to text, and hexadecimal bytes.
SQL Query Beautifier & FormatterPopular
Format, indent, and beautify messy SQL queries with uppercase keywords and custom indentation.
Interactive Regular Expression TesterPopular
Test regular expressions in real-time with match positions, capture groups, and flag controls (g, i, m, s).
YAML to JSON & JSON to YAMLPopular
Bidirectional YAML to JSON and JSON to YAML converter with syntax validation and file export.
XML Formatter & Prettifier
Beautify, indent, or minify XML and SVG markup with custom indentation and error detection.
Crontab Expression Tester & ExplainerPopular
Explain 5-field cron schedules in human English and compute the next upcoming execution timestamps.
HTML Entity Encoder & Decoder
Encode special characters into HTML entities and decode entities back to readable text.
User Agent Parser & Device Inspector
Inspect your current browser User-Agent or parse custom strings to detect browser, OS, engine, and device type.
cURL to Fetch & Axios ConverterPopular
Convert terminal cURL commands into modern JavaScript fetch() and Axios HTTP request code snippets.
Lorem Code Snippet Generator
Generate realistic dummy programming code snippets in JavaScript, Python, SQL, and Go for mockups and UI testing.
HTTP Status Codes Directory & GuidePopular
Searchable directory of all HTTP status codes (1xx-5xx) with RFC definitions, causes, and developer tips.