Vibora (Under heavy development)

Vibora is a sexy and fast hybrid (sync/async) Python 3.6+ web framework & server.

  • Fast and efficient (probably the fastest Python web framework).

  • Schemas / Validation engine. (15x faster than marshmallow)

  • Template Engine (AOT compiler, smart cache/reloader, deep inheritance, 2x faster than Jinja2)

  • Websockets (RFC 7118 / RFC 6455)

  • Components / Nested Blueprints / Domain Based Routes

  • Connection Reaper / Self-Healing Workers

  • Sessions (encrypted cookies, Redis, Memcache, files)

  • Download / Upload streaming

  • MultipartForm streaming (Cython finite state machine)

  • Caching tools (go fast or go home)

  • Complete flow customization (A.k.a Middlewares / Signals / Listeners / Black Magic)

  • Static Files (Smart Cache, Range, LastModified, ETags, Streaming)

  • Complete Test Framework (async & websocket included)

  • Type hints, type hints everywhere.


  • Be the fastest Python web framework.

  • Windows / Linux / MacOS.

  • Correctness > Performance > Easiness of Use > Framework Maintenance.

  • Server and Framework, one soul.

  • Enjoyable development environment.

  • Provide a modern Flask alternative to the community.

Usage Example

import asyncio
from vibora import Vibora
from vibora.request import Request
from vibora.responses import JsonResponse

app = Vibora()

def home():
    return JsonResponse({'hello': 'world'})

@app.route('/async', methods=['GET'])
async def home_async(request: Request):
    await asyncio.sleep(1)
    return JsonResponse({'hello': 'world'}, status_code=201)

if __name__ == '__main__':


  • Logs

  • Router Host/Subdomains

  • Async requests timeout.

  • Implement a faster, correct and tested router.

  • Remove requests dependency

  • Pause Writing big templates

  • Streaming

  • Improve URL FOR

  • Tests

  • Verify compile warnings by messing up any extension path on

  • Check on big uploads

  • Command line tools

  • Websockets


  • HTTP2 Support.

  • Rate Limiting (AWS & Ip Tables integration to help with DDOS)

  • Cluster-Wide publish/subscribe events API.

  • Near real-time API with statistics about the server.

  • Native i18n support.

  • Auto Reloading

  • JIT compiler for user routes.

  • Authentication/Authorization Framework

Special Thanks

  • Armin Ronacher. No words needed, this whole framework is based on many of his projects.

  • Cython developers. Crazy stuff. Awesome work.

  • Paweł Piotr Przeradowski. Japronto inspired a lot this framework, thanks bro!


  • Where the performance comes from ?

    • Cython. Critical framework pieces are written Cython so it can leverage C speed in critical stuff.

    • Common tasks as template rendering, schema validation were made builtin in the framework,

      written from scratch with performance in mind.

  • It's Pypy compatible ?

    • Not yet. But I'll make sure it works on Pypy as soon as Pypy reaches 3.5 stable.

  • Why not use Jinja2 ?

    • It's hell easier to write something from scratch when looking for performance on something

      already heavily optimized.

  • Where is Japronto on benchmarks ?

    • Japronto is a proof of concept. The whole framework is missing a huge chunk of features and fixes.

      The author of the framework does not encourage the usage of it and so do I.

    • Japronto can be faster than Vibora on naked benchmarks thanks to impressive hand-coded C

      and faster HTTP parser (pico X noyent).

    • Vibora does not use "picohttparser" because I don't think it's safe enough and there are bunch of issues/pull

      requests waiting years to be fixed.

    • Hand-coded C extensions can be a nightmare hell to non-expert C devs so I'm not

      willing to replace Cython with baby cared C code. Still I'm willing to replace Cython with Rust extensions

      if they get stable enough.

    • Compare a naked framework against a fully featured framework is just dumb. To give you a reason:

      Vibora was 30% faster before security and features were a concern.

  • Why don't export the template engine into a new project ?

    • I'm planning to do so but right now I want to focus on Vibora features/integration.

  • Can we make it even faster ?

    • Sure! I have a hell bunch of ideas but I'm one man army. Are you willing to help me ? :)

Last updated