Open source knowledge base built around outlines, backlinks, and local-first notes. Logseq is a Notion alternative for researchers, students, and tech
Open source note-taking and to-do application with markdown, sync, encryption, and cross-platform clients. Joplin is a Notion alternative for users wh
Open source API client that stores collections directly on the filesystem for Git-friendly collaboration. Bruno is a practical Postman alternative for
Open source API client for REST, GraphQL, gRPC, and developer workflows. Insomnia is a Postman alternative for teams that want a focused API testing w
Open source platform for building internal business applications from databases, APIs, and custom workflows. Appsmith is useful when teams need a flex
Open source low-code platform for building internal tools, dashboards, and admin panels. ToolJet can replace parts of Airtable or no-code app workflow
Open source backend platform with SDKs, database adapters, cloud code, and push notification support. Parse is a Firebase alternative for teams that w
Open source backend in a single executable with embedded database, auth, file storage, and realtime APIs. PocketBase is attractive for prototypes and
Open source no-code database interface that can turn existing databases into spreadsheet-like workspaces. NocoDB is often compared with Airtable becau
Open source data platform that turns SQL databases into APIs, admin panels, and no-code content workflows. Directus is a useful Airtable and Firebase-
