Free Online Tools for Developers
Use 90+ tools like JSON formatter, Base64 encoder, and regex tester instantly in your browser.
90+
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Base64 Encoder & DecoderFree online Base64 encoder and decoder for text and files, converting any input into a Base64 string or restoring the original data, with full UTF-8 support and URL-safe encoding options.JSON Formatter & ViewerFree online JSON formatter and viewer that beautifies minified or single-line JSON with proper indentation, lets you explore the structure in a collapsible tree view, and flags syntax errorsMD5 Hash GeneratorFree online tool to generate MD5 hashes from text or files with a pure JavaScript implementation based on RFC 1321, for integrity checks and data verification.JSON ValidatorFree online JSON validator that instantly checks whether a JSON string is syntactically valid and, on error, pinpoints the exact line and column with the cause to fix missing commas or quotes fastSHA-256 Hash GeneratorFree online SHA-256 hash generator that computes secure SHA-256 digests from text or uploaded files using the Web Crypto API, supports HMAC-SHA256 with a secret key, and lets you verify hashes by comparison.JSON DiffFree online JSON diff tool that compares two JSON objects side by side, color-highlighting added, deleted, and changed keys while deeply traversing nested structures so every difference stands outPassword GeneratorFree online password generator that creates cryptographically secure random passwords using crypto.getRandomValues, measures entropy strength in bits, excludes ambiguous characters, and supports bulk generation from 4 to 128 characters.JSON to YAML ConverterFree online tool to convert between JSON and YAML in both directions, auto-detecting the input format and preserving indentation and nested structure.
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20 Languages
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