Developer Workbench Suite
24 Native UtilitiesFast, air-gapped, zero-backend engineering utilities running 100% in your browser memory. No telemetry, zero server transit.
Data (8종)
8 toolsText & Encoding Workbench
Case conversion, CRLF/LF normalization, multi-byte UTF-8 Base64, URL, Hex encoder with real-time telemetry.
cURL to Code & API Workbench
Client-side cURL command parsing to native Fetch, Axios, Python, Go, Postman/OpenAPI with execution studio.
SQL Pivot & Query Generator
Auto-generate RDBMS PIVOT and CASE WHEN aggregate matrix queries from tabular JSON/CSV.
Structured Format Converter
Zero-server bi-directional transformation between JSON, CSV, TSV, YAML, XML, and TOML.
Visual Diff & Patch Workbench
Side-by-side text/code diffing, structural JSON deep equality inspection, and Git patch exporter.
Process Dump Parser & Tree
Parse Linux ps aux & Windows tasklist dumps, interactive PID/PPID tree visualization and kill command generator.
HAR & Network Log Analyzer
In-browser HAR & Docker log viewer, Waterfall timing charts, and sensitive header masking.
PDF Toolkit & Page Editor
Multi-image to PDF bundling, page splitting, local watermarking, and zero-transit encryption.
Security (5종)
5 toolsWeb Crypto Ciphers
In-browser Web Crypto API AES-GCM and RSA-OAEP zero-transit encryption & decryption.
JWT Inspector & Validator
Zero-transit client-side JSON Web Token header & payload decoder and signature validator.
Hash & Checksum Studio
Web Crypto API SHA-256, SHA-512, MD5 client-side digest generator.
PII & Sensitive Data Masker
Automated regex & contextual masking for phone numbers, emails, RRNs, and banking credentials.
Certificate & PEM Decoder
Parse SSL/TLS .crt, .pem, .csr, .pfx certificates, inspect SANs, fingerprints, and expiration D-Day.
Finance (3종)
3 toolsCompound Interest Calculator
High-precision compound modeling, periodic contribution, DRIP, and real purchasing power growth simulator.
Portfolio Asset Rebalancing
Target allocation drift calculation and minimum transaction cost rebalancing order optimizer.
Monte Carlo Simulator
Stochastic random walk asset return path modeling with 10,000 runs and Maximum Drawdown (MDD) risk analyzer.
Media (8종)
8 toolsImage Format Matrix Converter
PNG ↔ JPG ↔ WebP ↔ AVIF transformation and compression quality tuning (0KB bundle).
Favicon Suite Generator
Single image to complete standard favicon bundle (16, 32, 180px) and multi-layer .ico packaging.
EXIF Metadata Cleaner
Visual inspection of photo GPS coordinates/camera metadata and 1-click complete sanitization.
Audio Format Converter & Trimmer
In-browser WAV ↔ MP3/OGG transcoding and visual waveform trim editor.
Audio Tuner & BPM
Real-time Web Audio API FFT microphone pitch detection (A4=440Hz) and tap metronome.
Apple HEIC/HEIF Converter
Direct in-browser batch decoding of iPhone .heic/.heif photos to JPG/PNG.
In-Browser OCR Extractor
Client-side Tesseract.js image-to-text extraction (Zero external transit).
Guitar TAB Sheet OMR
Guitar tab staff recognition and optical music digital note transcription.