Available tools
Browser-based
Your file is processed locally without waiting for a server conversion queue.
No upload required
Files stay in your browser, which is ideal for private drafts and personal libraries.
Free ebook tool
Merge and split ebook files without signup, credits, watermarks, or installation.
About compressing ebooks
Ebook size is dominated by images. Re-encoding them to match your reading screen yields big savings with no perceptible loss.
Everything runs locally in your browser: no uploads, no queues, no limits.