Best Open Source Frameworks 2026

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Browse free open source Frameworks and projects below. Use the toggles on the left to filter open source Frameworks by OS, license, language, programming language, and project status.

Gemini 3 and 200+ AI Models on One Platform
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Build generative AI apps with Vertex AI. Switch between models without switching platforms.

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Cut Data Warehouse Costs by 54%
Easily migrate from Snowflake, Redshift, or Databricks with free tools.

BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.

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1

Solidity plugin for IntelliJ

Solidity plugin for IntelliJ

Solidity plugin for IntelliJ. You can support the development by sponsoring the plugin on Github. Supporting the plugin with crypto through the Gitcoin grant. Please attach the screenshot for every issue if possible. It will make the issue much clearer and easier to understand.

Downloads: 3 This Week

Last Update: 2026-02-08
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2

Bitwarden Web

The website vault

The Bitwarden web project is an Angular application that powers the web vault.

Downloads: 0 This Week

Last Update: 2022-06-07
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3

Bootstrap 5 UI KIT

Bootstrap 5 & Material Design 2.0 UI KIT

Trusted by 2 000 000+ developers & designers. Used by companies & institutions. Super simple, 1 minute installation. Detailed docs & practical examples. Lots of tutorials. Plain JavaScript (but works also with jQuery). Huge and active community. MIT license, free for personal & commercial use. Simplicity and ease of use are key features of MDB 5 UI Kit. You need only one minute to install and run it. A slideshow component for cycling through elements, images or slides of text, like a carousel. Use MDB custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more. Indicate the loading state of a component or page with MDB spinners, built entirely with HTML, CSS, and no JavaScript. A card is a flexible and extensible content container. It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options.

Downloads: 0 This Week

Last Update: 2025-12-08
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4

Carina-Cucumber

Carina automation BDD framework (TestNG + Cucumber)

The repository: https://github.com/zebrunner/carina-cucumber Carina-Cucumber is an independent Carina module that supports Behaviour-Driven Development (BDD) (TestNG + Cucumber). Documentation and free support Cucumber usage example: https://github.com/zebrunner/carina-demo/tree/master/src/test/resources/features User guide: http://zebrunner.github.io/carina Demo project: https://github.com/zebrunner/carina-demo Code formatter We offer to use our configured Java code formatter for Eclipse. To use the same formatter in IntelliJ IDEA, you should install and configure Eclipse Code Formatter. Carina code formatter: https://github.com/qaprosoft/carina/blob/master/carina_formatter.xml Eclipse Code Formatter: https://plugins.jetbrains.com/plugin/6546-eclipse-code-formatter

Downloads: 0 This Week

Last Update: 2021-07-02
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Stop Storing Third-Party Tokens in Your Database
Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.

Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.

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