PPT Compressor – Compress PowerPoint files in the browser

Show HN: PPT Compressor – Compress PowerPoint files in the browser

Operating in show hn launch, PPT Compressor – Compress PowerPoint files in the browser operates.

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Hi HNI built a simple online PowerPoint compressor that runs entirely in the browser: https://www.pptcompressor.online/No server uploads. No login. No installation.It works by unpacking `.pptx` files, recompressing embedded images with Canvas/WebP, and zipping them back — all using JavaScript and Web APIs. Great for reducing file sizes before sending slides by email or uploading to platforms with size limits.Built with: - JSZip - Canvas API - Web Workers - Pure HTML/CSS/JS (no backend)I’d love feedback on speed, compatibility, and ideas for new features (e.g. batch mode or PDF support). If you're working on browser-native tools too, happy to connect!Thanks

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Website: www.pptcompressor.online