head to head · open source
katana vs finvizfinance
katana has 17,531 GitHub stars, 1,185 forks, 23 open issues and last shipped 6 days ago. finvizfinance has 1,706 stars, 280 forks, 2 open issues and last shipped 22 days ago. katana leads on adoption by 928% (17,531 vs 1,706 stars). katana is written in Go under MIT; finvizfinance is written in Python under MIT. katana has attracted 7% as many forks as stars, finvizfinance 16%. katana was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| katana | finvizfinance | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 1.7K |
| License | MIT | MIT |
| Written in | Go | Python |
| Last push | 2026-09-14 | 2026-08-29 |
| Forks | ⑂ 1.2K | ⑂ 280 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick katana if
- You weight community size — 18K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick finvizfinance if
- You want the finvizfinance feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and finvizfinance fits your workflow better
About katana
Katana is an open source, MIT licensed crawling and spidering framework written in Go, built for security engineers and automation pipelines that need to map web applications at scale rather than explore them by hand.
read the full katana overview →
About finvizfinance
finvizfinance is an MIT licensed Python library that scrapes the FinViz website to deliver stock, forex, and crypto data as pandas dataframes, made for analysts, quants, and developers who want programmatic access to FinViz screens, fundamentals, and news instead of reading the site by hand.
read the full finvizfinance overview →
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Frequently asked questions
Is katana or finvizfinance more popular?
katana has 17,531 GitHub stars and finvizfinance has 1,706. katana has the larger community by that measure.
Are katana and finvizfinance free?
Both are open source. katana is licensed under MIT and finvizfinance under MIT. Neither carries a licence fee.
What is the difference between katana and finvizfinance?
katana is written in Go and finvizfinance in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, katana or finvizfinance?
Choose katana if you want the larger community (17,531 stars) or its MIT licence terms. Choose finvizfinance if its feature set, stack or MIT licence fits better. Both are self-hostable.