Dev tools · alternatives · 2026

24 alternatives to Open Source PDF Compression API

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Open Source PDF Compression API launched in 2015; newer entries below may have overtaken it.

1. 1FP
   Free PDF Watermarking and Compression▲5

   2023 · tools.shuru.app · its alternatives →

2. 2
   PDF.ai Free tools▲230

   Free PDF tools, merge, split, compress, compress, rotate etc

   2023 · pdf.ai · its alternatives →

3. 3
   Lightweight PDF▲151

   A free PDF compressor for Mac

   2019 · lightweightpdf.com · its alternatives →

4. 4
   PDF Squeezer▲72

   Mac tool to shrink the file size of a PDF in seconds.

   2014 · its alternatives →

5. 5AA
   An API to compress images and reduce bandwidth costs▲8

   2014 · tapcelerate.com · its alternatives →

6. 6
   An open-source PDF document generation library in java▲8

   Solution for rapid development of specific enterprise software - openlowcode/Open-Lowcode

   2019 · github.com · its alternatives →

7. 7
   Scanned PDF Compressor▲6

   Compress PDF files locally in your browser

   Jul 2026 · garmahis.com · its alternatives →

8. 8
   Online PDF Compressor▲1

   Compress, merge, split, and convert PDFs in seconds

   Jun 2026 · online-pdf-compressor.com · its alternatives →

9. 9
   Free PDF Compressor▲7

   Compress pdf to 200kb online

   2025 · its alternatives →

10. 10PC
    PDF.cool – API for converting web pages to PDF▲9

    2017 · pdf.cool · its alternatives →

11. 11
    Crop and OCR PDFs in the Browser▲5

    2024 · pdf.darefail.com · its alternatives →

12. 12
    AnyMP4 Free PDF Compressor Online▲5

    free, PDF Compressor

    2022 · anymp4.com · its alternatives →

13. 13
    Free PDF Compressor Tool▲5

    Compress PDFs to 200KB for government & job forms (free)

    Jan 2026 · compresspdfto200kb.online · its alternatives →

14. 14
    Free PDF Compress Online▲6

    Reduce File Size Online

    2025 · compress-pdf.app · its alternatives →

15. 15
    FoneDog PDF Compressor▲7

    Reduce Your PDF Size for Free

    2024 · fonedog.com · its alternatives →

16. 16
    PDF reflow in the browser with local AI model▲6

    Jul 2026 · appblit.com · its alternatives →

17. 17
    Online PDF Compressor for Windows, Mac▲2

    compressor, online, free

    2019 · apowersoft.com · its alternatives →

18. 18
    99compress▲5

    Compress images & PDFs online without quality loss

    Dec 2025 · 99compress.com · its alternatives →

19. 19
    PDF Tools▲14

    Free browser-based PDF toolkit — no uploads, no sign-up

    2025 · pdf-vert.com · its alternatives →

20. 20
    OpenPdfSaucer a Java library for creating, editing and rendering PDFs▲5

    2024 · github.com · its alternatives →

21. 21
    CompressFast▲6

    Free online file compression tools

    2025 · its alternatives →

22. 22
    Free PDF Tools▲2

    Free PDF tools like compress, merge, split and reorder.

    Aug 2026 · freepdfs.tools · its alternatives →

23. 23
    PDF Private Compressor▲2

    Private PDF Compression. Zero Uploads. Zero Risk.

    Feb 2026 · pdfprivatecompressor.com · its alternatives →

24. 24
    SmallPDFfree▲8

    Fast, accurate and free pdf solutions

    2024 · smallpdffree.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →