I usually find a lot of these tools from viewing GitHub’s trending repositories. When I find a novel repo, I’ll star it to remember for later. This is a list of free, open source software spanning security, AI, cloud, HTTP, JSON, monitoring, dev ops and more.

I enjoy finding and cataloging new packages as much as using them sometimes. Some of these I’ll never use. By filing them away, I can recall in it the future if I am faced with a problem that they can solve. Enjoy!

1. NeMo: a LLM (large language model) toolkit for conversational AI from Nvidia
2. LMOps: general technology for enabling LLMs from Microsoft
3. Prometheus: open source monitoring tool, built on top of Go
4. aws-cli: universal command line AWS interface
5. httptoolkit: “HTTP Toolkit is a beautiful & open-source tool for debugging, testing and building with HTTP(S) on Windows, Linux & Mac”
6. curl: ubiquitous command line tool for transferring data with URL syntax
7. curl-impersonate: a special build of curl that can impersonate Chrome and Firefox browsers
8. jq: touted JSON command line tool
9. jc: CLI tool and Python library that converts out of popular command line tools to other formats
10. JSONView: a Chrome web extension that applys XML-style code formatting to JSON in your browser, written in Typescript
11. thug: a Python based “honey client”, used to mimic user behavior in a web browser in order to detect and emulate malicious content
12. OpenTelemetry: open source tracing and monitoring app
13. nocodb: an open source airtable alternative
14. dnstake: a fast tool to check for DNS vulnerabilities
15. croc: easily and securely send things from one computer to another
16. buku: inter-browser bookmark transfer tool
17. backstage: an open platform for building developer portals, written in Typescript
18. sentry: a “developer first” error tracking and performance monitoring platform
19. sidekick: free and open source live action debugging platform, like chrome dev tools for your backend
20. Prowler: an open source security tool to perform cloud best practices
21. Earthly: create a CI/CD continuous developer system
22. metabase: the easy, open source way for everyone in your company to ask questions and learn from data
23. Zulip: open source team chat
24. Joplin: an open source note taking and to do list application
25. fastup: a tool for gaining insights from large image collections and detecting anomalies
26. Upptime: an open source uptime monitor and status page connected to Github
27. Rembg: tool to remove the background from images
28. dyna-cli: convert Python functions to Linux shell commands
29. Penpot: the open source design & prototyping platform
30. pgcat: postgresQL pooler with sharding, load balancing and fail over support
31. pedalboard: a Python library for working with audio from Spotify
32. OpenRPA: free open source enterprise grade robot process automation software. See also: more free RPA tools
33. hook-slinger: manage webhooks with Python
34. vidcutter: a modern video editing tool
35. XSSstrike: most advanced Cross Site Scripting detector
36. wifiPhisher: wifi security testing tool with Python extensions
37. Salt: an “any infrastructure” automation tool built on Python
38. Locust: a scalable load testing Python library
39. Fabric: simple, Pythonic remote execution and deployment via ssh
40. ShareX: free and open source program that lets you capture and record your screen, written in C#