Skip to content
SPECIFICTION
Get listed

Open TLC

opentlc.org

Web
Visit opentlc.org
Spec score 7.0 #25 of 29 in Computer-Assisted Translation Software

Spec sheet

Product
Open TLC is a browser-based, open-source computer-assisted translation tool for professional translators, learners and teams.Read 9 Oct 2026 · opentlc.org
Integrations
The site lists compatibility with SDLXLIFF, memoQ XLIFF, Phrase MXLIFF, WorldServer WsXLIFF, WPML, and CAT return packages for Trados, WorldServer, memoQ, Transit, TIPP, and COTI.Read 9 Oct 2026 · opentlc.org
Support
The project welcomes contributions including code, sanitized fixtures, interoperability results, documentation, and issue reports.Read 9 Oct 2026 · opentlc.org
CAT exchange
Open TLC imports and exports XLIFF 1.2, 2.0, and 2.1, and lists TMX, TBX, and SRX exchange support.Read 9 Oct 2026 · opentlc.org
Format workflows
The editor has 44 registered format workflows and uses format-specific adapters to extract, validate and export files.Read 9 Oct 2026 · opentlc.org
Free and open source
The project describes Open TLC as a free and open-source web-based CAT tool.Read 9 Oct 2026 · github.com
Local media processing
Image OCR and audio or video transcription run on-device; the page says source media is not uploaded for these workflows.Read 9 Oct 2026 · opentlc.org
Local storage
Projects are stored in IndexedDB in the current device and browser profile; the application says it does not send project content to an Open TLC storage server.Read 9 Oct 2026 · opentlc.org
Local-first
Project data is stored in IndexedDB in the current device and browser profile, and the application does not send project content to an Open TLC storage server.Read 9 Oct 2026 · opentlc.org
Notable limit
Generic ZIP import is available only for packages with a validated opentlc-project.json manifest and safe member paths.Read 9 Oct 2026 · opentlc.org
OCR and transcription
Image OCR and audio/video transcription run locally in the browser; the site says source media is not uploaded, though model files may be downloaded and cached.Read 9 Oct 2026 · opentlc.org
Origin
Open TLC began as a master's thesis project at Anhalt University of Applied Sciences in Germany.Read 9 Oct 2026 · opentlc.org
PDF limit
Translated PDFs are flattened, and complex fonts, transparent artwork, or scanned pages may need visual review.Read 9 Oct 2026 · opentlc.org
Portable projects
Projects can be saved as Open TLC JSON or XLIFF and exported from one browser or device for import into another.Read 9 Oct 2026 · opentlc.org
Project portability
Projects can be saved in a versioned Open TLC JSON format or exported as XLIFF, then moved to another browser or device by exporting and importing the project file.Read 9 Oct 2026 · opentlc.org
Storage limitation
Browser project data can be lost through site-data clearing, profile changes, device failure or browser maintenance, and the page recommends regular exports for backup.Read 9 Oct 2026 · opentlc.org
Supported content
Supported formats include Office documents, software localization files, publishing formats, CAT exchange files, subtitles, images for local OCR, and audio or video for local transcription.Read 9 Oct 2026 · opentlc.org
Supported formats
The site lists 44 registered format workflows, including Office documents, localization files, publishing formats, subtitles, and CAT project files.Read 9 Oct 2026 · opentlc.org
Supported operating systems
The page says browser-based adapters work consistently across operating systems.Read 9 Oct 2026 · opentlc.org
Translation safeguards
Format adapters validate files and protect inline codes, placeholders, and structural metadata during translation and export.Read 9 Oct 2026 · opentlc.org

Where Specifiction places it

Alternatives to Open TLCAll alternatives →