Developer Tools
28 tools — free, private, runs in your browser
SQL formatting and schema tools, Git and regex references, Docker conversion, Mermaid viewer, image compression, and Markdown editor.
Git Cheat Sheet
Quick reference for common Git commands.
Crontab Generator
Generate cron expressions with a visual builder.
SQL Formatter
Format and beautify SQL queries.
SQL to ER Diagram
Convert CREATE TABLE SQL into interactive ER diagrams with relationship mapping.
SQL Query Plan
Visualize SQL execution plans and get optimization tips.
SQL Dialect Converter
Convert SQL between PostgreSQL, MySQL, SQLite, T-SQL, BigQuery, and more.
Foreign Key Visualizer
Map foreign key relationships and find orphaned tables in your schema.
Chmod Calculator
Calculate Unix file permissions.
Docker to Compose
Convert docker run commands to docker-compose.
Regex Tester
Test and debug regular expressions.
Regex Cheat Sheet
Regular expression patterns and syntax reference.
Mermaid Diagram Viewer
Render Mermaid diagrams in real-time. Flowcharts, sequence diagrams, class diagrams, gantt charts, and more.
Performance Benchmark
benchmark-builder - free, privacy-first, and 100% client-side.
BPMN Viewer
Visualize BPMN 2.0 diagrams and export them as PDF. Free, privacy-first BPMN viewer that runs entirely in your browser.
BPMN to Visio
Convert BPMN process diagrams into Microsoft Visio compatible formats.
Visio File Viewer
View Microsoft Visio diagrams (.vsdx, .vsd) directly in your browser.
Html Wysiwyg Editor
html-wysiwyg-editor - free, privacy-first, and 100% client-side.
MIME Type Lookup
mime-types - free, privacy-first, and 100% client-side.
Markdown Editor
Edit and preview Markdown files in real-time.
Markdown to HTML Converter
Convert Markdown to HTML with syntax highlighting.
Text Diff Checker
Compare two texts and see differences.
Text Statistics
Count characters, words, sentences, and paragraphs.
Image Compressor
Compress and optimize images.
Camera Recorder
Record video from your webcam.
SVG Placeholder Generator
Generate SVG placeholder images.
Agent Identity Generator
Instantly generate unique personas, traits, and system prompts for AI agents.
Local Token Counter
Client-side LLM token counter. 100% private, no API calls.
Meta Tag Generator
Generate HTML meta tags for SEO.