Open Source Developer Tools
Discover 445 open source Developer Tools repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. Developer Tools projects here are most often combined with Python, AI Agents and CLI. Last updated October 4, 2026.
445 repositories · updated October 4, 2026
ply: Build Python Lexers and Parsers
PLY is a zero-dependency Python library for building lexers and LALR(1) parsers using lex and yacc conventions. It suits developers implementing language tools or learning compiler construction, but its author says no further maintenance is expected.
pyparsing: Build Text Parsers in Python
pyparsing is a Python library for defining parsing-expression grammars directly in code. Use it to turn structured text into accessible parse results without writing a separate grammar file or relying only on regular expressions.
python-phonenumbers: Parse, Validate, and Format Phone Numbers
A Python port of Google’s libphonenumber for parsing, validating, and formatting international phone numbers. It also supports matching numbers in text and optional location, carrier, and timezone lookups.
sqlparse: Tokenize, Format, and Inspect SQL in Python
sqlparse is a non-validating Python library for splitting SQL scripts, formatting queries, and inspecting token trees. It suits tools that need to work with varied SQL without enforcing a particular dialect.
boto3: Build Python Applications with AWS Services
Boto3 is the AWS SDK for Python, letting developers write software that uses AWS services such as S3 and EC2. It fits Python applications that need programmatic access to AWS, with credentials and region configured for the environment.
facebook-sdk: Access Facebook's Graph API from Python
A Python client library for working with Facebook's Graph API. It is intended for developers building Python integrations that use Facebook data or pair server-side code with Facebook's JavaScript SDK for authentication.
twython: Access the Twitter API from Python
Twython is a Python library for querying Twitter data and working with its standard and streaming APIs. It suits Python applications that need Twitter authentication, account data, timelines, messaging, or media uploads.
furl: Parse and Modify URLs in Python
furl is a Python library for parsing URLs into editable components and safely building them back into strings. Use it when URL changes involving paths, queries, fragments, or encoding are cumbersome with standard-library functions.
purl: Build and Manipulate URLs in Python
purl is a Python library for inspecting and transforming URLs through an immutable, chainable API. It suits applications that need structured URL handling, query-parameter updates, or RFC 6570 template expansion without assembling URL strings manually.
pyshorteners: Create Short URLs from Python
pyshorteners is a Python library that wraps URL-shortening services, letting applications generate short links through a common interface. It suits developers who need URL shortening in Python, but the repository is archived.
django-pipeline: Bundle and Compress Django Static Assets
django-pipeline packages CSS and JavaScript assets for Django by combining and compressing files during static-file collection. It suits Django projects that want configured asset bundles, with optional template support and data-URI embedding.
django-storages: Connect Django to Storage Backends
django-storages is a Python library that provides a variety of storage backends for Django applications. Use it when an app needs storage options beyond Django’s built-in defaults, and consult the documentation for backend-specific setup.