| What it does | Digital PDF signatures for macOS
| Free file tools that run in your browser with no upload, no file size limit, and no sign-up required
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | Not given
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| Pricing model | Freemium
| Free
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| Pricing | Create your first 5 signatures free, then unlock unlimited signing with a one-time purchase
| Not given
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| Key features | - Keychain signing with support for CryptoTokenKit smart cards
- Visible signature with optional image, signer name, and signing time
- RFC 3161 timestamping and long-term validation (LTV)
- Signature inspection with status, certificate chains, and DSS material review
- Multiple signatures as independent document revisions
- Local document processing without server uploads
- Support for PAdES-B-B, PAdES-B-T, PAdES-B-LT, and PAdES-B-LTA profiles
| - Edit images including transparency, text, brightness, sharpening
- Convert data formats including CSV, Excel, JSON, XML
- All processing runs locally in browser with no uploads
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| What makes it different | - Real digital signatures that preserve original PDF bytes, not just image stamps
- Incremental PDF updates preserve existing signatures as independently verifiable
- All document processing stays local without server uploads
- Works with macOS Keychain and supported smart cards without PKCS#11 limitation
- Verification always unlimited while signing has free tier option
| - Files never leave your device - no upload, no server storage, no file size limits
- No sign-up, no account, no premium plan or subscription
- Tools continue working offline after the page loads
- 171 tools covering images, PDFs, video, audio and data formats
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 37 ● no change since last check | 6 ● no change since last check |
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| Trust Flow (Majestic) | 7 | 4 |
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| Citation Flow (Majestic) | 16 | 24 |
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| Referring domains (Majestic) | 5 | 9 |
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Filewhisk