| What it does | Browser-based EPUB workspace for viewing, editing, and extracting DRM-free ebook files locally
| Free image and PDF tools that process files in your browser without upload or account
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| All tools are free with no account, subscription or credit card required.
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| Key features | - EPUB viewer for reading chapters and inspecting publication structure
- Metadata editor to modify title, authors, language, publisher, description, and subjects
- Cover editor to replace publication artwork
- Extract chapters to Markdown format with metadata and image references
- Extract chapters to plain UTF-8 text
- Browser-local file processing with no server upload
- Blocks external resources and publication scripts by default
- Supports EPUB 2 and EPUB 3 formats
| - Image crop, edit, compress and convert
- PDF organization, editing, signing and conversion
- Batch processing up to 20 images or 10 PDFs for merging
- File size limits of 25 MB per file, 60 MB total
- Support for JPG, PNG, WebP, GIF, BMP, SVG and TIFF formats
- PDF page operations up to 300 pages total
- AES-256 password encryption for PDFs
- No account or login required
- Download files individually or as ZIP archives
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| What makes it different | - Local browser processing keeps your ebook file private and offline
- Non-destructive editing preserves original files while creating new versions
- Focused single-task tools instead of complex full-featured desktop software
- Clear compatibility limits and honest support boundaries documented
| - Files process in your browser without uploading to any server
- All tools are completely free with no subscription or account required
- Honest limits disclosed upfront before choosing files
- No artificial intelligence or OCR, only practical file operations
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 3 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 6 | 0 |
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| Citation Flow (Majestic) | 27 | 0 |
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| Referring domains (Majestic) | 31 | 0 |
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EPUB Toolset
Tsubami