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Tools that run locally without uploading your data — GDPR-conscious workflows.
Privacy-friendly browser tools on Tentaco groups related browser tools in one place. Open a linked guide to run the matching mode — most processing stays on your device unless a tool explicitly uses an online step.
Use this collection when you need a clear starting point, short how-to steps, and privacy notes before picking a specific tool. Browse related Tentaco tools on this hub, open a studio mode when you need a fuller workspace, and keep files on your device whenever the tool runs locally.
Password generator — strong & secure, free online
Generate cryptographically strong passwords in your browser. Length, symbols and bulk mode — copy instantly, no server.
Hash generator online — MD5, SHA-256 & more free
Compute MD5, SHA-1, SHA-256 and SHA-512 hashes in your browser. Text or files — no server upload.
JWT decoder online — inspect tokens free
Decode and inspect JSON Web Tokens in your browser. Header, payload and signature — no upload.
Merge PDF without upload — free online
Combine multiple PDF files into one document in your browser. No upload to a server — files stay on your device.
Compress PDF without upload — reduce file size free
Shrink PDF file size in your browser. No cloud upload — choose quality presets and download a smaller PDF instantly.
Free PDF tools online
Merge, compress, split, convert and edit PDF files in your browser — no install, no upload for local tools.
Free developer tools online
Format JSON, test regex, encode URLs, decode JWT and more — everyday coding utilities in the browser.
Security & crypto tools
Hash, encode, decode and generate secrets locally in your browser.
Privacy depends on the selected tool. Check the privacy block on each tool page for file transfer, processing location and storage.
LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.
This hub lists Tentaco tools and guides for privacy-friendly browser tools. Each card opens a dedicated page with steps, formats and privacy details.
Most linked tools process data locally in your browser. Hybrid or online steps are labeled on the tool page.
No. Open a tool and start immediately — no registration required for core workflows.