Private Toolkit
Convert HEIC, camera RAW, WebP and AVIF images and turn MOV into MP4, hundreds of files at once, free, all inside your browser.
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Description
Convert HEIC, camera RAW, WebP and AVIF images and turn MOV into MP4, hundreds of files at once, free, all inside your browser. Nothing is uploaded.
About Private Toolkit
What is Private Toolkit?
Private Toolkit is a collection of file and text conversion tools developed by Gyrus Solutions. It executes entirely inside the user's web browser using JavaScript and WebAssembly modules without uploading files to remote servers.
What Private Toolkit does
The toolkit provides four client-side workbenches: Image, Video, Text, and Archive. It converts photos across formats including HEIC, camera RAW, WebP, AVIF, PNG, and TIFF, returning batch results in a single ZIP. The video tool rewrites clips into MP4 containers, compresses files to target limits, and generates GIFs. It also cleans OS metadata like .DS_Store and Thumbs.db from ZIP archives, and formats text, JSON, YAML, HTML, and XML.
Who Private Toolkit is for
The utility is designed for users working with sensitive photos, private documents, and media who need format conversion without sending files to third-party servers.
How Private Toolkit works
Users select or drop files and folders into their browser, where client-side WebAssembly encoders process the data directly on the local processor, enforced by Content Security Policy restrictions.
Key features
- File conversions that run entirely inside your browser using WebAssembly modules
- Image format converter supporting HEIC, camera RAW, WebP, AVIF, PNG, and TIFF
- Video processing workbench supporting MP4 container rewrites, compression, and GIF creation
- ZIP archive cleanup stripping operating-system clutter from files
- Text formatting and encoding utilities for JSON, YAML, HTML, XML, and Base64
- Privacy architecture enforced by Content Security Policy with zero server endpoints
- Free to use with no account, no install, and no file size or count limits
Facts from privatetoolkit.org, checked 15 October 2026
Written from Private Toolkit's own website (Homepage, About). The maker can claim this listing to edit it.
Categories
Frequently asked questions
What is Private Toolkit?
Private Toolkit is a collection of browser-based conversion tools for images, videos, text, and archives that runs without uploading files to servers.
Are files uploaded to any servers during conversion?
No. All conversion and transcoding happens locally in the browser using WebAssembly modules and your device's processor.
Which image formats can be converted?
The image workbench converts formats including HEIC, camera RAW, WebP, AVIF, PNG, and TIFF.
Are there file size or file count limits?
No file size or count limits are imposed by the website, though conversions are limited by local device memory and processor speed.