About LabTools Studio
A free, non-commercial hobby project — built by researchers, for researchers.
About
What is LabTools Studio?
A free collection of browser-based scientific tools for researchers, engineers, and students. No account, no installation, no cost. It is a hobby project, not a product or company.
Who made it?
Built by people who actually work in labs and needed these tools. The alternatives were either expensive, required installation, or didn't work well enough — so we built simple ones that run in the browser.
Figure Extractor
Upload a plot image, calibrate the axes, click to place data points, and export as CSV, TXT, or XLSX. Supports PNG, JPG, TIFF, BMP, and WebP. All processing is local — no image data is ever sent to a server.
Data Monitor & Logger
Use browser-based OCR to read numbers from screen regions. A 6-digit session code lets you view live readings on another device in real-time. Readings are relayed through a cloud database — see the data security section below.
Data Security & Privacy
⚠ Session Code Warning
The Data Monitor and Data Logger use a 6-digit session code as the only access control. Anyone who has your code can view your live data in real-time. There is no password, no user authentication, and the API key used to communicate with the cloud database is visible in the page source. Do not use these tools with sensitive, confidential, proprietary, or regulated data. Treat your session code like a shared password.
What data is sent to the cloud?
Figure Extractor: Nothing. All processing is local.
Data Monitor: Your session code, OCR-extracted values, region names, and timestamps are stored in a cloud database (Supabase) to enable remote viewing. A heartbeat is sent every 5 seconds while capturing.
Data Logger: Readings are stored locally in your browser by default. Cloud streaming is opt-in — when enabled, it sends session code, values, and timestamps to the same cloud database.
All pages: Every page load sends your browser's user agent, the referring URL, the page path, and a timestamp to our cloud database for basic analytics.
How long is data retained?
Data Monitor sessions are automatically deleted after 7 days of inactivity. Data Logger cloud data persists until you manually clear it. Visit analytics are retained indefinitely.
Does the Figure Extractor send my images anywhere?
No. Images are processed entirely in your browser using WebAssembly. Nothing is uploaded.
FAQ
Is it free?
Yes. All tools are free with no sign-up and no usage limits. This is a non-commercial project.
Is my data private?
It depends on the tool. The Figure Extractor is fully local — nothing leaves your device. The Data Monitor and Data Logger send your OCR readings to a cloud database via a session code. Anyone with that code can see your data. Do not use those tools with data you need to keep private.
What image formats does the Figure Extractor support?
PNG, JPG, TIFF, BMP, and WebP. Exports data as CSV, TXT, or XLSX.
How accurate is the OCR?
Accuracy depends on text size, font, and contrast. For best results, select a region showing only the number you want to read with clear, high-contrast text. Always verify results against the original source.
Can I view Data Monitor readings on mobile?
The source (capture) page requires a desktop browser. The viewer page works on any device — open it on your phone and enter the session code.
Will the service always be available?
No guarantee. This is a hobby project maintained on a best-effort basis. It may go down, change, or be discontinued without notice.