About MultiConvertLab
MultiConvertLab is a fast and secure platform that lets you convert images, PDFs, audio, and video files in just seconds — all processed directly in your browser.
Who We Are
MultiConvertLab was created by FIRSTDEV, a web development team passionate about building fast, accessible, and privacy-first tools. We believe everyone should have access to professional-quality file conversion without complex software, subscriptions, or privacy concerns.
Our Mission
To provide free, reliable, and privacy-friendly conversion tools that work entirely in your browser. No uploads to external servers, no account required, no hidden fees.
How Our Tools Work
Unlike most online converters that upload your files to remote servers, MultiConvertLab processes everything locally in your browser using modern web technologies (WebAssembly, Canvas API, Web Workers). Your files never leave your device.
Your Privacy Matters
- Files are processed 100% in your browser
- Nothing is uploaded to any server
- No tracking of your file contents
- Data disappears when you close the page
Why Trust Us?
Client-Side Processing
Your files never leave your device
Open Standards
Built with proven web technologies
Free Forever
No premium tiers, no hidden costs
No Account Required
Use all tools anonymously
AI-Powered Tools
Some tools like Background Remover use AI models that run directly in your browser. The AI model downloads once (~30MB) and processes images locally — your photos are never sent to any AI service.
Questions?
Have questions about our tools or how we handle your data? We're happy to help.