Alternatives

Products that do what Corsproxy – Fix CORS Errors Instantly – Free for Development does

1. 1WI
   Will It CORS? – an automatic CORS explainer▲152

   2020 · willitcors.com

2. 2M3
   Mitmproxy 3.0 released, an open-source console-based proxy▲242

   2018 · mitmproxy.org

3. 3
   CORSPROXY▲8

   Your programmable proxy for the modern web.

   Feb 2026

4. 4M1
   Mitmproxy 1.0 released, now with a web interface▲248

   2016 · corte.si

5. 5FW
   Freeciv-Web▲212

   2019 · freecivweb.org

6. 6RR
   RootCause – Record, Replay and Reproduce JavaScript Errors▲98

   2018 · therootcause.io

7. 7PA
   Pxy – A Go server that proxies websocket livestreams to RTMP servers▲133

   2020 · github.com

8. 8QT
   Quickfix, the best stupid idea for fixing problems in Node modules▲61

   2017 · github.com

9. 9CA
   Cortris – A Simple Url Shortener written in Go▲6

   2020 · adalricus.nand.sh

10. 10PA
    Pump, a dead simple Pythonic abstraction of HTTP.▲118

    2011 · adeel.github.com

11. 11AC
    A CORS proxy in a container▲7

    2016 · github.com

12. 12IB
    I built a self-hosted error tracker in Rails▲75

    This project is inspired by 37signals’ ONCE idea. I replicated the whole process and have already sold a few copies (the testimonials are real).

    Oct 2025 · telebugs.com

13. 13BN
    Bufferi.ng: fake a bad connection on zoom▲46

    2021 · bufferi.ng

14. 14LW
    LightProxy – Web debugging proxy alternative to Charles▲27

    2020 · github.com

15. 15GS
    Goslow – Slow HTTP server that responds with errors▲6

    2014 · github.com

16. 16RM
    Relé – Make Google PubSub Integration Easier for Python Projects▲40

    2019 · github.com

17. 17H2
    HTTP/2 HPACK Compression Go Library▲40

    2016 · github.com

18. 18WP
    Whoops – PHP errors for cool kids▲8

    2018 · github.com

19. 19RS
    Runscope - Solve API errors fast.▲6

    2013 · runscope.com

20. 20AF
    A Forever Free Alternative to Pingdom/Uptimerobot/Statuscake▲31

    2019 · freshworks.com

21. 21HB
    HAProxy back end controller/scaler, supports AWS ASG and Consul▲12

    2020 · elasticpyproxy.readthedocs.io

22. 22AR
    Aredis–redis client for Python(also has support for sentinel and cluster)▲26

    2017 · github.com

23. 23OJ
    Objection.js – Yet another ORM for Node.js hit 1.0.0 today▲9

    2018 · vincit.github.io

24. 24BA
    Bowtie, a (hopefully) idiomatic HTTP middleware for Go▲7

    2015 · github.com

Ranked by how close each launch is in meaning, then by votes. Refine with a description →