| What it does | Free online tool to compress images to exact KB size
| Open Mac drives on Windows without a driver and copy files safely
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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
| Freemium
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| Pricing | Not given
| Free: browsing and previewing Mac drives. $14.99: one-time unlock for copying files and SHA-256 verification.
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| Key features | - Supports JPG, JPEG, PNG, and WebP formats up to 10MB
- Binary-search algorithm hits target within ±5 KB
- Preset compression sizes: 20KB, 50KB, 100KB, 200KB
- All processing happens locally in browser with no server upload
- Automatic dimension scaling for very small targets
- Lightweight compression logic optimized for low-RAM devices
| - Reads APFS and Mac OS Extended drives without driver installation
- SHA-256 verification of every copied file
- Supports password-encrypted APFS volumes
- Opens disk images (.img, .cdr, raw .dmg)
- Works with external SSDs, hard drives, USB sticks and SD cards
- No kernel-level driver installation required
- Case-sensitive HFS+ support
- Detailed copy report with success and failure information
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| What makes it different | - Browser-based processing with complete privacy - images never leave your device
- Exact KB targeting with binary search instead of quality slider guessing
- Completely free with no daily limits, signup, or watermarks
- Built specifically for exam forms, job portals, and visa applications with exact KB requirements
- Optimized for low-end devices with limited RAM and older browsers
| - Read-only access guarantees no accidental writes or modifications to the drive
- SHA-256 verification ensures every file copy is identical to the original
- Never leaves empty or partial files on your PC
- One-time payment with no subscription required
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 5 ▲ +3 (up) 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) | 19 | 0 |
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| Referring domains (Majestic) | 9 | 0 |
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KB Reducer
Diskferry