About Open File Viewer

Open source takes time. Thank you for every thoughtful use.

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Open Source

Turn complex file previews into maintainable infrastructure

Open File Viewer keeps improving format coverage, framework integrations and production workflows. The project provides stable, extensible web file previews for vanilla JavaScript, React, Vue and Svelte.

4Native JS / React / Vue / Svelte

15+Format and plugin capabilities

1Unified viewer and plugin protocol

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If this open source project saved you development time, please consider giving it a free GitHub Star.

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Thanks

Every report helps improve the preview experience

Share production file samples, layout issues, container integration problems and format requests through GitHub Issues. The project will keep improving stability, integration clarity and format coverage.

Report an issue

Please include reproducible details for format detection, rendering, responsive layout or toolbar interaction problems.

Share a use case

If you use Open File Viewer in production, share your workflow and improvement ideas.