About Tooler
Fast, private, and free online tools — plus in-depth guides that actually teach you something.
Why Tooler exists
Most "free online tools" sites are ad-heavy and empty of real information. They process your file and give you nothing else — no context, no best practices, no explanation of what just happened. Tooler is different. Every tool is paired with comprehensive educational content that explains the underlying concepts, common use cases, best practices, and mistakes to avoid. We think tools should teach, not just process.
Tooler was built for creators, developers, students, and professionals who need to get real work done — compressing videos for sharing, converting images for websites, extracting text from scanned documents, calculating financial figures — without signing up, without ads dominating the experience, and without wondering whether their files are being stored or sold.
What we offer
File Processing Tools
- Video compression (H.264 & H.265)
- Image format conversion & resizing
- OCR text extraction (100+ languages)
- Audio extraction (MP3, 192 kbps)
- Document conversion (PDF & Markdown)
Calculators & Utilities
- Financial: EMI, GST, Percentage
- Health: BMI, Calories
- Developer: Hash, Base64, QR, Base
- Text: Counter, Case, ASCII, Decorator
- Converters: Length, Weight, Temp, Speed
How our guides are created
Every educational guide on Tooler goes through a rigorous creation process:
- Topic research: We identify real questions people search for — not just keyword targets, but genuine knowledge gaps.
- Technical review: Guides are fact-checked against authoritative sources (official documentation, standards bodies, academic references).
- Practical testing: Examples and workflows are tested with real files and real scenarios.
- Continuous updates: Guides are periodically reviewed and refreshed as technology and best practices evolve.
Read our Editorial Guidelines for full details on our content standards.
Our principles
Privacy-first by design
Files are processed and automatically deleted within 1 hour. We never read, store, or share your content. No accounts required — ever. See our Privacy Policy.
Educational, not just functional
Every tool includes detailed explanations of how it works, when to use it, and what trade-offs to expect. Our 77+ in-depth guides cover topics from video codecs to hash algorithms.
Speed and reliability
Built on Rails with production-grade background job processing. Tools use industry-standard libraries (FFmpeg, Tesseract, MiniMagick) with sensible defaults that just work.
No unnecessary friction
No sign-up walls. No email collection. No premium tiers. Just open the tool, use it, and get back to work.
Who we are
Tooler is an independent project built and maintained by a team committed to making useful, private, and educational online tools accessible to everyone. We are not backed by venture capital, we do not sell data, and we are not building a "growth engine." We build tools because we believe the internet deserves better utilities than the ad-stuffed, content-farm alternatives.
Stay connected
Have feedback, a bug report, or a tool suggestion? Contact us — we read every message.