Tentaco is a privacy-first browser toolbox with 467+ tools across 24 studios for handling PDFs, images, videos, code, and more — all processed locally on your device, with no uploads, no account, and no cloud.
What is Tentaco?
Tentaco is a local-first web application that runs a broad collection of document, media, and development utilities entirely inside your browser. It takes files (PDFs, images, videos, audio) as input and outputs processed or converted files, while also offering interactive studios for code editing and PDF manipulation. The platform works on any device with a modern browser, supports 17 languages, and is offered by the Tentaco team (available at tentaco.cc). Thanks to its architecture, files never have to leave your computer, and you don't need to create an account to start working.
Key Features
- Local processing — Most tools run in the browser, so your files are not uploaded to any remote server. The homepage states “Standard lokal · Server nur bei Aktivierung,” meaning the default is fully local, with server features available only if you enable them.
- PDF Studio — A workspace with 51 tools, including OCR, scan-to-PDF, compression, merging, and more. You can open it directly via the PDF Studio page.
- Video Studio — 28 tools that include a timeline editor and a local FFmpeg integration for cutting, creating GIFs, and converting video formats. Try the Video Studio.
- Image Studio — 41 tools for compressing, resizing, converting, and applying effects to images. For example, you can quickly compress an image or scale it down.
- HTML Studio — 11 tools for live HTML, CSS, and JavaScript editing with instant preview, ideal for testing code snippets. Access it via HTML Studio.
- Command palette — Press Ctrl+K (Strg+K on German keyboards) to open a command palette for searching and launching tools quickly.
- File drop quick access — On the homepage, you can drop a file (PDF, image, video, or audio) directly into the drop zone; Tentaco routes it to the appropriate studio for further processing.
- Multilingual — The interface is available in 17 languages, making it accessible to a wide range of users.
Who is it for?
- Office workers and students — Merge PDFs, compress large documents, and sign files without uploading sensitive information to third-party services.
- Developers and web designers — Use the HTML Studio to quickly prototype and test HTML, CSS, and JavaScript with a live preview, all without leaving the browser.
- Content creators — Edit videos with the timeline editor, generate GIFs, and convert formats using the built-in FFmpeg support.
- Privacy-conscious individuals — Anyone who wants to handle documents and media locally, avoiding cloud storage or account requirements.
What can you do with Tentaco?
- PDF processing — Perform OCR on scanned documents, convert scans to PDF, compress PDFs, merge multiple files, and more using the 51 tools in the PDF Studio.
- Video editing — Cut video clips, create GIFs, and convert between formats in the Video Studio, which includes a timeline editor and local FFmpeg.
- Image manipulation — Compress images for web use, resize them for different platforms, and apply effects without losing quality.
- Web development — Write and preview HTML, CSS, and JavaScript in a live environment, perfect for testing responsive designs or debugging layout issues.
How does Tentaco work?
The workflow is simple: you either drop a file onto the homepage, choose one of the 24 studios, or search for a specific tool using the command palette (Ctrl+K). Once inside a studio, you work in a focused interface that groups related tools. The platform processes files locally by default, so your data stays on your device. If a particular tool requires server-side processing, you’ll see an option to activate it — but that’s not the default behavior.
FAQ
Do my files leave my browser?
No. Tentaco states that files do not leave your browser. The default mode is fully local, with server activation only available for specific tools when you choose to enable it.
Do I need an account to use Tentaco?
No account is required. You can start using the tools immediately, which also means there’s no sign-up friction or personal data stored on Tentaco’s servers.
What file types does Tentaco support?
Tentaco works with PDFs, images, videos, and audio files. The homepage drop zone accepts these types and routes them to the appropriate studio so you can process or convert them.
Tentaco offers over 467 tools organized into 24 studios. The studios cover PDF work, image editing, video processing, HTML development, and more than 10 additional categories.
