Developer Tools

High Usage

Formatters, encoders, parsers, validators, and code utility essentials.

Collection Size13 Tools

Available Developer Tools Utilities

developer

Popular

JSON Formatter & Beautifier

Format, beautify, indent, minify, and inspect JSON data with syntax highlighting, collapsible nodes, and error reporting.

HTML/CSS/JSStatic Utility

developer

Essential

JSON Validator & Linter

Validate JSON syntax in real time with line and column error indicators, character offsets, and auto-fix capabilities.

HTML/CSS/JSStatic Utility

developer

Popular

Base64 Encoder (Text & Files)

Convert plain text, UTF-8 strings, images, and files into standard Base64 or Data URI format.

HTML/CSS/JS Static Utility

developer

Popular

Base64 Decoder (Text & Files)

Decode Base64 encoded strings and Data URIs back to clean UTF-8 text, inspect hex representation, or download decoded files.

HTML/CSS/JS Static Utility

developer

Popular

UUID / GUID Generator

Generate cryptographically random UUID v4 and timestamp-based UUID v1 identifiers in bulk with uppercase, hyphen, and brace formatting.

HTML/CSS/JS Static Utility

developer

Popular

Unix Timestamp Converter

Convert Unix epoch timestamps (seconds & milliseconds) to human-readable dates (UTC, Local, ISO-8601, RFC 2822) and vice versa.

HTML/CSS/JS Static Utility

developer

Essential

URL / URI Encoder

Encode raw strings and query parameters into standard percent-encoded URLs (encodeURI & encodeURIComponent).

HTML/CSS/JSStatic Utility

developer

Essential

URL / URI Decoder & Query Parser

Decode percent-encoded URLs and query parameters into readable text with structured breakdown of protocol, host, path, and query arguments.

HTML/CSS/JS Static Utility

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Diff Checker & Text Comparator

Compare two text blocks or code snippets side-by-side with line-by-line character difference highlighting and statistics.

Client-Side Longest Common Subsequence

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Markdown to HTML & Live Previewer

Write or paste GitHub Flavored Markdown and instantly preview the rendered document with 1-click HTML markup export.

W3C DOM Sanitization + Regex GFM Parser

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CSV to JSON & JSON to CSV Converter

Bi-directional tabular data converter between CSV/TSV spreadsheets and structured JSON arrays with custom delimiter support.

Client-Side RFC 4180 CSV Parser + Native JSON Engine

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Case Converter (camelCase, snake_case, kebab-case)

Transform text and code variable names across camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, and Title Case.

Client-Side Tokenization & Casing State Machine

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Cryptographic Hash Generator (SHA-256, SHA-512, SHA-1)

Compute secure cryptographic checksums using native W3C Web Crypto API with uppercase/lowercase formatting and bit-length auditing.

W3C Web Cryptography API