An offline, private alternative to CloudConvert
Last updated September 2026
CloudConvert supports hundreds of formats by converting files on its servers. That breadth is hard to beat. But most people only need a handful of conversions, and for those our tools do the work in your browser: Compress Video File for MP4/MOV/WebM/MP3/M4A, HEICPix for iPhone photos, and PDFHub for images ↔ PDF.
Shrink MP4, MOV, WebM, MP3 and M4A files for WhatsApp, email or Discord, or trim them — in your browser, no upload.
Open Compress Video File →Convert iPhone HEIC photos to JPG, PNG, WebP or AVIF in your browser. Unlimited batch, nothing uploads.
Open HEICPix →All-in-one offline PDF editor. Merge, split, OCR, redact, sign, password protect, and convert PDFs - all processing happens locally in your browser.
Open PDFHub →Why pick ours
- Your files are not uploaded — useful for personal videos and photos.
- No conversion-minute quota on the free tier.
- Batch HEIC conversion with no cap.
- Works offline after the page loads.
Where CloudConvert is better
- CloudConvert supports far more formats (documents, e-books, CAD, archives, fonts).
- Server-side conversion is faster for very long videos on weak devices.
- It has a mature API and integrations for automation.
- Fine-grained codec options for advanced users.
Which should you use?
Use our tools for everyday video, photo and PDF conversions on private files. Use CloudConvert for unusual formats or automated pipelines.
FAQ
Which formats do your tools cover?
Video/audio: MP4, MOV, WebM, MP3, M4A (Compress Video File). Photos: HEIC to JPG, PNG, WebP, AVIF (HEICPix). Documents: images to PDF and PDF to images (PDFHub).
Is browser-based video compression slower?
It can be, because it uses your own CPU. Short clips are quick; long 4K videos may take a while on older machines.
Do files leave my device?
No. Conversion runs locally with WebAssembly.
CloudConvert is a trademark of its respective owner. This page is an independent comparison and is not affiliated with or endorsed by them. Feature details reflect our understanding at the time of writing.