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Decode and verify JSON Web Tokens — header, payload, claims, and signature.

Pretty-print or minify JSON — with syntax validation.

Convert images between PNG, JPEG, WebP, AVIF, TIFF, GIF, and SVG formats Category: conversion

Remove image backgrounds instantly with AI — returns a transparent PNG Category: conversion

Parse and visualize LCOV code coverage reports — line, function, and branch coverage per file.

Resize, crop, rotate, and flip images online — free, runs in your browser, no upload required.

Encode text or data to Base64, or decode Base64 back to plain text.

Generate MD5, SHA-1, SHA-256, SHA-384, or SHA-512 hashes from any text input.

Encode or decode URLs and query string components using percent-encoding (RFC 3986).

Convert Unix timestamps to human-readable dates and ISO 8601, or convert dates back to epoch seconds.

Generate one or more cryptographically random UUID v4 identifiers instantly.

Convert text between camelCase, snake_case, kebab-case, PascalCase, and 7 other naming conventions.

Convert a JSON array of objects to CSV, or parse CSV back to JSON.

Convert colors between HEX, RGB, HSL, and HSV — instantly and in any direction.

Convert numbers between binary, octal, decimal, and hexadecimal.