Trusted by 50,000+ Developers Worldwide

Professional-grade tools used by developers at leading tech companies and startups globally

260+

Professional Tools

50K+

Monthly Users

2M+

Tools Used

99.9%

Uptime

About Selqio

Welcome to Selqio - a professional developer tools platform created by experienced engineers who understand the daily challenges of modern development workflows.

What started as a personal collection of useful utilities has evolved into the web's most comprehensive suite of free developer tools. Our mission is simple: eliminate friction in your development process by providing instant, reliable tools that work perfectly in your browser.

Platform Details

Launched: Early 2025
Based in: Netherlands, Europe
Team: Professional Software Engineers
Focus: Developer Productivity & Efficiency

Quality Standards

Privacy-first design (client-side processing)
Mobile-optimized responsive interfaces
Regular security audits and updates
99.9% uptime service level

Our Development Journey

Q1 2025 - Foundation

Launched with 50 essential developer tools focusing on the most common workflow needs. Initial tools included code formatters, converters, and basic utilities.

Q2 2025 - Expansion

Grew to 150+ tools with advanced features like JWT generators, API testing tools, and comprehensive data processing utilities. Added mobile optimization.

Q3 2025 - Current

Now serving 260+ professional tools to 50,000+ developers monthly. Enhanced security features, improved user experience, and expanded tool categories.

Q4 2025 - Roadmap

Planned features: AI-powered code tools, team collaboration features, API access, and enterprise solutions for development teams.

What You Can Find Here

Calculators & Converters: Unit converters, currency tools, timezone utilities, and mathematical calculators.
Design & UI Tools: CSS generators, color pickers, responsive grid helpers, and design utilities.
Data & Code: JSON/CSV processors, HTML minifiers, URL encoders, and data visualization tools.

Image & Media: Image editors, QR code generators, media converters, and optimization tools.
Geo & Mapping: Coordinate tools, geocoders, GeoJSON utilities, and mapping helpers.
Privacy & Security: Password generators, encryption tools, JWT utilities, and security analyzers.

Most Trusted Tools

These tools are battle-tested by thousands of developers daily and have proven their reliability in production environments.

JWT Generator

Generate secure tokens for authentication systems.

15K+ users

HTML to JSX Converter

Convert HTML to React JSX syntax instantly.

12K+ users

Python Code Formatter

PEP 8 compliant Python code formatting.

10K+ users

WebRTC Tester

Test camera & microphone connectivity.

8K+ users

Privacy & Security

Your privacy and data security are fundamental to everything we build. Our commitment to protection is built into every tool:

Client-Side Processing

Most tools process your data entirely in your browser - it never leaves your device.

Zero Data Storage

We don't store, log, or track your input data or processing results.

HTTPS Everywhere

All connections are encrypted with modern SSL/TLS protocols.

GDPR Compliant

We follow European data protection standards and regulations.

100% Secure

Your data stays on your device for maximum privacy protection.

Get in Touch

Business Inquiries

Enterprise solutions, custom development, partnerships

business@selqio.com

Technical Support

Bug reports, feature requests, technical help

support@selqio.com

Response Time: We typically respond within 24 hours during business days (Monday-Friday, CET timezone).

Support Selqio

If these tools help improve your development workflow, consider supporting continued development and server costs!

Buy me a beer (€3)

All contributions go directly toward server infrastructure and new tool development. Thank you for your support!