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Best Open Source Alternatives to Smallpdf
Compare the best free and open-source alternatives to Smallpdf — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.
Curated by open-source.store · Updated August 2026 · 9 alternatives
Smallpdf
Proprietary SaaSSmallpdf alternatives compared
| Tool | License | Platforms | Self-hosted | |||
|---|---|---|---|---|---|---|
 Stirling-PDF | 88,521 | LGPL-3.0 | LinuxmacOSWindowsDocker | Yes | Aug 2026 | Visit |
 PDF.js | 53,653 | Apache-2.0 | WebLinuxmacOSWindows | No | Jul 2026 | Visit |
 pdfcpu | 8,743 | Apache-2.0 | LinuxmacOSWindows | No | Jul 2026 | Visit |
 PDF Arranger | 5,746 | GPL-3.0 | LinuxWindows | No | Aug 2026 | Visit |
 PDFsam Basic | 4,525 | AGPL-3.0 | LinuxmacOSWindows | No | Jul 2026 | Visit |
 Okular | 1,447 | GPL-2.0 | LinuxmacOSWindowsandroid | No | Aug 2026 | Visit |
 PDF Tricks | 125 | GPL-3.0 | Linux | No | Jul 2026 | Visit |
 unlockR | 27 | GPL-3.0 | Linux | No | Apr 2026 | Visit |
 Qpdf Tools | 23 | Unlicense | Linux | No | Dec 2025 | Visit |
