Top 23 Python HacktoberFest Projects

HacktoberFest

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1. free-programming-books

   1 160 398,692 9.3 Python

   :books: Freely available programming books

   

   Project mention: Focused Work, Distraction-Free Coding | dev.to | 2026-05-24

   Free Programming Books

2. AppSignal

   www.appsignal.com sponsored

   AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.

   

3. TheAlgorithms

   2 69 225,166 8.3 Python

   All Algorithms implemented in Python

   

4. transformers

   3 249 167,499 10.0 Python

   🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

   

   Project mention: Firefox Download Failed at 99%? How to Resume It Instead of Starting Over | dev.to | 2026-10-13

   For Hugging Face, neither curl nor aria2 can fix an expired signature halfway through, because the signed URL they hold just stops working. Use hf download from huggingface_hub, which can request fresh signed URLs when the old ones die. It has its own problems, though. A transformers issue shows a download that hit repeated 403s on signed URLs, refreshed them, and then hung without an error. Setting HF_HUB_DISABLE_XET=1 avoided it. That particular bug was on HF's side and was fixed before the issue was closed, but the Neutree FAQ recommends the same thing for unstable networks, noting the HTTP path is slower but more reliable.

5. sherlock

   4 116 93,803 7.5 Python

   Hunt down social media accounts by username across social networks

   

   Project mention: Free software scares normal people | news.ycombinator.com | 2025-10-30

   Wow, it's actually real.

   https://old.reddit.com/r/github/comments/1at9br4/i_am_new_to...

   https://github.com/sherlock-project/sherlock/issues/2011

6. Home Assistant

   5 1,450 91,517 10.0 Python

   :house_with_garden: Open source home automation that puts local control and privacy first.

   

   Project mention: The Shoemaker's Children Aren't Barefoot | dev.to | 2026-09-06

   Home Assistant: https://www.home-assistant.io/

7. PayloadsAllTheThings

   6 37 81,758 7.8 Python

   A list of useful payloads and bypass for Web Application Security and Pentest/CTF

   

8. Scrapy

   7 199 64,721 9.8 Python

   Scrapy, a fast high-level web crawling & scraping framework for Python.

   

   Project mention: uv Python cheatsheet: what changed in 0.12 and what still trips you up | dev.to | 2026-09-18

   Scrapy runs its continuous integration on uv today. The workflow pins astral-sh/setup-uv, drives the test matrix through uvx --with tox-uv tox, and sets UV_PYTHON_PREFERENCE: only-system with a comment explaining why, which is to make uv use the interpreter actions/setup-python already installed instead of downloading one of its own. Steal that last setting. In continuous integration you have usually already paid for a specific interpreter, and letting uv helpfully fetch a second one gives you a build that passes against a Python your users are not running. Although Scrapy's installation guide doesn't mention uv. It covers pip, it covers conda, it covers virtual environments, and it stops. Documentation usually trails practice so this is nobody's failure, but it is real and fixable, and since Zyte maintains Scrapy it is a gap we can close rather than complain about. If you have ever wondered what a genuinely useful first contribution to a large open-source project looks like, updating an installation page to match what the maintainers already do is a strong candidate.

9. SaaSHub

   www.saashub.com sponsored

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

10. supervision

    8 28 51,173 9.7 Python

    We write your reusable computer vision tools. 💜

    

    Project mention: Benchmarking ASR & Essential Open-Source CV Tools for Local AI | dev.to | 2026-06-09

    Source: https://github.com/roboflow/supervision

11. paperless-ngx

    9 228 46,470 9.9 Python

    A community-supported supercharged document management system: scan, index and archive all your documents

    

    Project mention: 6,918 Paperless matches: a document archive that was meant to replace the filing cabinet | dev.to | 2026-10-03

    Paperless-ngx documentation: https://docs.paperless-ngx.com/

12. Sentry

    10 324 45,525 10.0 Python

    Developer-first error tracking and performance monitoring

    

    Project mention: Free monitoring and analytics for vibe coding (2026) | dev.to | 2026-10-14

    Start-here: Will Google show the URL → Search Console (free). Who visited → GA4 (free standard). Product/errors → PostHog or Sentry. Is it up → UptimeRobot or Better Stack.

13. black

    11 355 41,890 9.4 Python

    The uncompromising Python code formatter

    

    Project mention: Configurable Indent Levels? | news.ycombinator.com | 2026-09-30

14. Anthropic-Cybersecurity-Skills

    12 7 34,111 9.2 Python

    817 structured cybersecurity skills for AI agents · Mapped to 6 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, NIST AI RMF & MITRE F3 (Fight Fraud) · agentskills.io standard · Works with Claude Code, GitHub Copilot, Codex CLI, Cursor, Gemini CLI & 20+ platforms · 29 security domains · Apache 2.0

    

    Project mention: Defensive cybersecurity skills (Blue team) | dev.to | 2026-10-10

    Github: https://github.com/fatehMohamed14/anthropic-cybersecurity-skills-defensive, This is a fork from https://github.com/mukul975/anthropic-cybersecurity-skills.

15. PythonRobotics

    13 10 30,664 7.2 Python

    Python sample codes and textbook for robotics algorithms.

    

16. linkedin-skill-assessments-quizzes

    14 38 28,859 7.9 Python

    Full reference of LinkedIn answers 2024 for skill assessments (aws-lambda, rest-api, javascript, react, git, html, jquery, mongodb, java, Go, python, machine-learning, power-point) linkedin excel test lösungen, linkedin machine learning test LinkedIn test questions and answers

    

17. Redash

    15 42 28,831 7.9 Python

    Make Your Company Data Driven. Connect to any data source, easily visualize, dashboard and share your data.

    

    Project mention: I ran my code analyzer on 9 codebases it had never seen. It found 3 real bugs, and embarrassed me first. | dev.to | 2026-07-16

    redash ships a client method calling GET /api/dashboards/recent with no backend route serves it. (Latent: the method has no callers today, which the issue says plainly. #7769)

18. Resume-Matcher

    16 17 28,665 9.9 Python

    The #1 AI Harness for Building Resumes, PDFs, Cover Letters & more, locally with 100+ LLMs support.

    

    Project mention: Show HN: Resume Matcher – Tailor your resumes with job descriptions | news.ycombinator.com | 2026-03-04

    - And above all, a simple and faster way to optimize your existing resume to a job description, that light nudge with the keywords that makes it fit.

    It's not perfect yet, but I'm working towards it more and more. Grateful to have community support so far.

    Also, a new website: https://resumematcher.fyi/

19. spotify-downloader

    17 109 26,290 9.2 Python

    Download your Spotify playlists and songs along with album art and metadata (from YouTube if a match is found).

    

20. opik

    18 22 22,474 10.0 Python

    Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.

    

    Project mention: Opik กับคำถามว่า agent ที่คุณรันอยู่ ทำอะไรผิดไปแล้วบ้าง | dev.to | 2026-09-13

    [1] comet-ml, "opik — Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows", GitHub (เข้าถึง 13 ก.ย. 2026), https://github.com/comet-ml/opik

21. Wagtail

    19 56 20,543 9.9 Python

    A Django content management system focused on flexibility and user experience

    

    Project mention: 5 Pain Points Wagtail Users Face with Multilingual Sites | dev.to | 2026-03-28

    When I read Discussion #13693, I noticed clear patterns. Maintainers and users shared their real-world experiences with i18n. Here are the five biggest pain points.

22. DB-GPT

    20 12 20,105 9.1 Python

    open-source agentic AI data assistant for the next generation of AI + Data products.

    

    Project mention: CVE-2026-80104: DB-GPT Skill Upload Path Traversal (and Sibling CVE-2026-73034) | dev.to | 2026-08-30

    In DB-GPT 0.8.0, skill_upload in packages/dbgpt-app/src/dbgpt_app/openapi/api_v1/agentic_data_api.py took the multipart file.filename and joined it onto pilot/tmp with no filename validation. A name with ../ segments writes outside the intended upload directory. Auth does not stop this: get_user_from_headers in packages/dbgpt-serve/src/dbgpt_serve/utils/auth.py is a mock that returns role="admin" whether or not a user_id header is set. GitHub issue #3026 tracks the skill-upload traversal. The fix landed as commit aecad1a9 (PR #3065, May 2026), which adds _validate_upload_filename and rejects absolute paths, multi-segment names, and ... That helper is present on tagged/PyPI v0.8.1. CVE-2026-80104 was assigned 2026-08-25.

23. Taipy

    21 24 19,433 7.8 Python

    Turns Data and AI algorithms into production-ready web applications in no time.

    

24. DocsGPT

    22 41 18,321 9.9 Python

    Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

    

25. parlant

    23 5 18,297 9.7 Python

    Build reliable customer-facing AI agents with Parlant: an interaction control harness optimized for controlled, consistent, and predictable LLM interactions.

    

    Project mention: parlant VS Radioso - a user suggested alternative | libhunt.com/r/parlant | 2026-09-08

26. SaaSHub

    www.saashub.com sponsored

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

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  Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise. Learn more →

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AppSignal knows why the f*#k it crashed.

Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.

www.appsignal.com

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