compare
Bottle vs Flask
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Bottle | Flask |
|---|---|---|
| Language | Python | Python |
| Licence | MIT | BSD-3-Clause |
| Stars | 8.8k | 75k |
| Latest | 0.13.4 | 3.1.3 |
| Last push | 2026-09-18 | 2026-09-08 |
| Release cadence | about 45 days between releases | about 182 days between releases |
| Active contributors | 2 commit authors on the default branch in the last 90 days | 3 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Bottle replaces Flask. Alternatives to Flask →
Full replacementA micro framework in a single file with no dependencies, with its own routing and templates.
Bottle
Flask
- 3.1.32026-02-19This is the Flask 3.1.3 security fix release, which fixes a security issue but does not otherwise change behavior and s…
- 3.1.22025-08-19This is the Flask 3.1.2 fix release, which fixes bugs but does not otherwise change behavior and should not result in b…
- 3.1.12025-05-13This is the Flask 3.1.1 fix release, which fixes bugs but does not otherwise change behavior and should not result in b…
- 3.1.02024-11-13This is the Flask 3.1.0 feature release. A feature release may include new features, remove previously deprecated code,…
- 3.0.32024-04-07This is a fix release for the 3.0.x feature branch.
Bottle
unsigned The latest release, 0.13.4, carries no signature GitHub could verify.
Loading the security report
Flask
✓ signed The latest release, 3.1.3, carries a signature GitHub verified.
Loading the security report