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Format, decode, and inspect sensitive production data locally. No network logs, no corporate security compliance worries, and zero server round-trips. Running securely inside Windows.
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Developer Tools That Just Work
Professional-grade formatters, converters, and decoders. 100% private, browser-based, and lightning fast.
★ Premium Pro Suite
Advanced tools with exclusive features.
GDPR/CCPA Log Scrubber & PII Redactor
GDPR/CCPA PII Redaction
RSC Payload Decoder
Decode RSC Payloads
React2Shell Security Auditor (CVE-2025-55182)
Audit React2Shell issues
Advanced UUID Generator (v4 & v7)
Generate UUIDs
AI Agent Rule & SKILL.md Builder
Build agent rules & SKILL.md
LLM Prompt-Caching Structure Optimizer
Optimize LLM prompt cache structure
Next.js Server Actions Shield
Secure Next.js Server Actions with cryptographic signatures
Vector Embeddings Reducer & Optimizer
Simulate and optimize vector embedding size and database memory footprint
MCP Server Permission Auditor & Policy Linter
Model Context Protocol Security
Popular Tools
Most used by developers today
Offline JSON Formatter & Beautifier (No Server Logs)
Format & beautify JSON
★ PRO: Offline SQL Formatter & Beautifier
Beautify and format SQL queries for MySQL, PostgreSQL, SQLite and more.
CSV to JSON Converter
Convert CSV to JSON
Offline JWT Decoder (No Server Logs)
Decode JSON Web Tokens securely and locally.
JSON Diff Tool
Compare two JSON objects
Live Markdown Previewer
Write and preview GitHub flavored markdown in real-time.
Text Diff Checker
Compare text and find differences.
Cron Schedule Generator
Build cron schedule expressions visually.
HTML Formatter
Beautify and minify HTML code instantly.
Free Online URL Decoder & Encoder
Decode and encode URL-safe strings with instant live preview.
Advanced UUID Generator (v4 & v7)
Generate random UUID v4 strings instantly.
Formatters
Converters
Scheduling & Utils
Security & Decoding
Offline JWT Decoder (No Server Logs)
Decode JWT
Free Online URL Decoder & Encoder
Decode URLs
Free Online Base64 Encoder & Decoder
Base64 Tool
Online Regex Tester & Debugger
Regex Tester
Secure Multi-Hash Generator (MD5, SHA-256)
Hash Generator
Advanced UUID Generator (v4 & v7)
UUID Generator
React2Shell Security Auditor (CVE-2025-55182)
React2Shell Auditor
Next.js Server Actions Shield
Server Actions Shield
Media & Files
Image Compressor
Reduce file size up to 80%. Your images never leave your device.
PDF Merger
Combine PDFs instantly. 100% local — no upload, no account.
EXIF Metadata Remover
View & strip hidden GPS, camera, and tracking data from photos. 100% local.
Image Resizer
Resize images to exact dimensions or percentages locally.
PNG to JPG Converter
Convert PNG to JPG. Preserve transparency with custom background colors.
PDF Compressor
Reduce PDF file size right in your browser. 100% local.
Image Converter
Convert between JPG, PNG, WebP, GIF, and BMP locally.
AI Engineering
Missing a Tool?
We are constantly building. Suggest a formatter or converter and we'll add it to the platform.
Developer Glossary & Cheat Sheet
Quick technical definitions to speed up your workflow.
What is SHA-256?
A cryptographic hash function that produces a unique 256-bit signature.
Generate HashReady to Start?
100% Client-Side. Your data never leaves your browser.
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