Directory

78 tools

vectorbt

Oleg Polakow · Financial analysis & investing

Python library for vectorized backtesting and portfolio analysis built on pandas, NumPy and Numba, with a commercial PRO edition

Apache-2.0 WITH Commons-ClauseFreePaidLocalNov 2, 2026

Vega-Altair

Vega-Altair developers (Vega project) · Data visualization

Declarative Python visualization library that compiles concise chart specifications to Vega-Lite JSON for interactive, grammar-of-graphics plots

BSD-3-ClauseOpen sourceFreeLocalNov 2, 2026

vLLM

vLLM project (originated at UC Berkeley Sky Computing Lab) · Local LLM inference & serving

High-throughput LLM inference and serving engine with PagedAttention, continuous batching, quantization and an OpenAI-compatible server for GPU and accelerator clusters

Apache-2.0Open sourceFreeSelf-hostedNov 2, 2026

Whisper

OpenAI · Voice, vision & multimodal AI

OpenAI's open-source multilingual speech recognition model family with MIT-licensed code and weights, a Python package and CLI for transcription, translation and language identification

MITOpen sourceFreeLocalMaintenanceNov 2, 2026

yfinance

Ran Aroussi and contributors · Market & fundamentals data

Open-source Python library that downloads price history, fundamentals, options chains and fund data from Yahoo Finance's unofficial endpoints for research and education

Apache-2.0FreeOpen sourceLocalNov 2, 2026

Zipline Reloaded

Stefan Jansen (ML4Trading) · Financial analysis & investing

Community-maintained fork of Quantopian's Zipline, an event-driven Python backtester with data bundles and the Pipeline API

Apache-2.0Open sourceFreeLocalBroken

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