TCR Converter
Convert files to and from TCR online for free. Fast, secure, and high-quality file conversion with no sign-up or software required.
Maximum file size is 1GB
Like RunConvert? Set us as a preferred source on Google.
Add to Preferred SourcesHow it works
Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is a TCR file?
The TCR format is a legacy compressed text file originally developed for the Psion Series 3 line of palmtop computers running the EPOC16 operating system. It utilizes a dictionary-based compression algorithm (ZVR) to minimize storage requirements on hardware with limited memory resources. The format consists of a distinct header followed by a compressed stream of 8-bit text data, incompatible with standard modern text editors.
How to open a TCR file
Modern operating systems such as Windows 10/11 and macOS cannot natively decode the ZVR compression used in TCR files. To access the content, users require third-party conversion tools or emulators. Calibre is the industry-standard recommendation for converting TCR archives into readable formats like PDF or EPUB. On Android devices, the Cool Reader application supports direct rendering of the format.
tcr Technical Info
- Full Name
- Psion Series 3 eBook
- Developed By
- Psion Teklogix
- Initial Release
- 1991
- MIME Type
- application/x-tcr
More tools
Related conversions
Why RunConvert
The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
3,000+ conversions supported
Every popular and niche format covered - video, audio, image, document, archive and more. New formats added regularly.
Fast, cloud-powered
No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
Secure & private
Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
Free - no account needed
Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.