Developer, Data & Code
Format, validate, beautify, and convert JSON, XML, YAML, SQL, regex, Base64, and code diffs with complete local secrecy.
All Developer, Data & Code
Select any developer utility below to process your files 100% locally in your browser memory.
JSON Formatter & Validator
Format, validate, beautify, and minify raw JSON with zero server upload. Client-side syntax error detection, key sorting, and instant download.
Base64 Encoder & Decoder
Encode and decode text and files to Base64 in your browser memory. UTF-8 multi-byte support, Data URI generation, and zero server transmission.
CSV to JSON & JSON to CSV Converter
Convert CSV files to JSON arrays and JSON to CSV spreadsheets in your browser. Handles quotes, custom delimiters, and type auto-detection.
Cryptographic Hash Generator
Generate cryptographic hashes (SHA-256, MD5, SHA-1, SHA-384, SHA-512) in your browser using the native Web Cryptography API. 100% private.
URL Encoder & Query Parameter Parser
Encode and decode URLs, query strings, and URI components in your browser. Inspect and modify query parameters in a live visual table.
HTML, CSS & JS Beautifier & Minifier
Format, beautify, and minify HTML, CSS, JavaScript, and JSON in your browser. Configurable indentation, syntax highlighting, and zero server upload.
Text & Code Diff Comparator
Compare two text files or code snippets side-by-side with color-coded line additions, removals, and modifications. 100% private.
Regular Expression (RegExp) Tester & Debugger
Test and debug JavaScript regular expressions in real time. Highlights matches, extracts captured groups, and previews string substitutions.
HTML Entity Encoder & Decoder
Convert special characters and symbols to HTML entities (&, <, <) and decode HTML entity entities back to plain text.
JSON to XML / XML to JSON Converter
Convert JSON data to XML and XML documents to JSON in your browser. Configurable root tags, formatting indentation, and file download.
Number Base Converter (Binary, Hex, Octal, Decimal)
Convert numbers instantly between Decimal (10), Binary (2), Hexadecimal (16), Octal (8), and custom radices 2-36. 8-bit grouped bytes and BigInt support.
Unicode Normalizer & Character Inspector
Normalize Unicode strings across NFC, NFD, NFKC, and NFKD forms in your browser. Inspect code points (U+XXXX), UTF-8 bytes, and HTML entities.
SQL Formatter & Minifier
Format, beautify, and minify SQL queries in your browser. Automatic clause alignment, uppercase keyword options, and custom indentation.
HMAC Keyed-Hash Generator (SHA-256, SHA-512)
Generate cryptographic HMAC signatures using SHA-256, SHA-512, SHA-384, and SHA-1 in your browser. Web Crypto API hardware security.
JSON to YAML / YAML to JSON Converter
Convert JSON to clean YAML and YAML documents to JSON in your browser. Configurable indentation, sequence formatting, and file download.
JSON Schema Validator & Structural Linter
Validate JSON payload data against JSON Schema definitions in real time. Detects type mismatches, missing required keys, enum violations, and range bounds.
Code Minifier (HTML, CSS, JS, JSON)
Minify and compress HTML, CSS, JavaScript, and JSON code in your browser. Strip comments, collapse whitespace, remove debug logs, and inspect compression.
Chmod Permissions Calculator
Interactive Unix chmod calculator. Convert between octal (755, 644, 777) and symbolic (rwxr-xr-x) permissions, calculate umask, and generate shell.
SQL Dump to CSV & JSON Converter
Convert SQL database dumps and INSERT INTO statements to CSV, TSV, or JSON. Extract tables, format columns, and export data with 100% client-side privacy.
Excel to JSON & CSV Converter (.xlsx, .csv)
Convert Excel spreadsheets (.xlsx) and CSV files to clean JSON arrays or CSV/TSV. Multi-sheet support, tabular preview, and zero server uploads.
Markdown to HTML Converter
Convert Markdown documents (.md) to clean HTML markup in browser memory. Instant live preview and download with zero uploads.
HTML to Markdown Converter
Convert raw HTML code or web page snippets to clean Markdown (.md) in your web browser. Instant formatting with zero uploads.
CSV to Excel (.XLSX) Converter
Convert CSV and TSV spreadsheet files to native Excel .XLSX spreadsheets in browser memory. 100% private with zero server uploads.
JSON to TypeScript Interface Converter
Generate strongly-typed TypeScript interfaces from raw JSON objects in browser memory. Instant code generation with zero server uploads.
XML to CSV Converter
Convert XML data feeds and documents to tabular CSV format in browser memory. Instant tabular extraction with zero server uploads.
Text to Binary Converter
Convert plain text to 8-bit binary code (0s and 1s) or decode binary to text in browser memory. Instant conversion with zero uploads.
TSV to CSV Converter
Convert tab-separated TSV files to comma-separated CSV spreadsheets in browser memory. 100% private with zero server uploads.
JSON Web Token (JWT) Decoder
Decode and inspect JSON Web Tokens (JWT) client-side with complete privacy. View header, payload claims, expiration countdown, and signature without server transmission.
Cron Expression Builder & Explainer
Build, validate, and translate 5-part cron schedule expressions into plain English. Instant previews of upcoming runs, GitHub Actions, and Linux crontab syntax.
cURL to Code Converter
Convert cURL commands to JavaScript fetch, Axios, Python requests, Go, and Rust online. 100% in-browser privacy with zero API key leaks.
High-Res Code Snapshot Studio
Turn source code into presentation-ready, high-resolution code snapshots with custom themes, macOS window frames, line numbers, and retina PNG/SVG export.
Interactive JSON Graph & Tree Visualizer
Explore complex JSON and YAML data as an interactive 2D node tree with live search, path breadcrumbs, collapsible branches, and SVG graph export.
Harmonic Color Palette Studio & Contrast Checker
Generate harmonic color schemes with complementary, analogous, and triadic modes. Inspect live WCAG 2.1 AA/AAA contrast ratios and simulate color blindness with zero cloud uploads.
Multi-Format Visual Diff Studio
Compare code and text with side-by-side split view, character-level micro-diff highlights, whitespace/case toggles, and unified patch export.
Interactive RegEx Visualizer & Rail Diagram
Visualize regular expressions as interactive railroad flow diagrams. Inspect tokens, capture groups, and test regex matches in real time.
CSS Box Shadow Generator
Craft multi-layer CSS box shadows, neumorphic soft UI effects, and smooth elevation scales with instant Tailwind CSS and standard CSS code generation.