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* updated columns name * fixed root issue * fixed chunks * fix: Remove title case transformation from knowledge base names and improve UI layout - Remove .title() transformation from knowledge base names in API endpoints - Add textTransform: none to knowledge base name column in grid - Improve source chunks page layout with proper overflow handling - Enhance chunk card UI with badges, better spacing, and copy feedback - Add pagination controls with first/last page buttons and page number input - Preserve original chunk indices when filtering - Fix whit * added kb dialog for added knowledg * added styles, need BE supprot * [autofix.ci] apply automated fixes * added more styles * [autofix.ci] apply automated fixes * [autofix.ci] apply automated fixes (attempt 2/3) * [autofix.ci] apply automated fixes * merge updated code * clean up stores and styles * fixed height on stepper * simplified init step * fixed minor issues in summary * code clean up with claude * moved kb files to the correct folder * added chunks endpoint * updated form * updated form * updated form to include column table * side panel style for multiple items * fixed placeholder and flipped modal settings config * [autofix.ci] apply automated fixes * fix for product styles and form update for hiding advanced mode * regex and dynamic error height adjustment * validation for file sizes * Move file size limit text to Configure Sources header and update conditional rendering * Paginated the chunk response. * Sync/Async ingestions endpoint for KnowledgeBases. Streamlining job execution for LF, internal status endpoint for jobs/tasks. * [autofix.ci] apply automated fixes * fix height jump and preview jump and added max h for dd * [autofix.ci] apply automated fixes * Paginated the chunk response. * Sync/Async ingestions endpoint for KnowledgeBases. Streamlining job execution for LF, internal status endpoint for jobs/tasks. * Modified migration file to handle downgrades. * committing changes for demo. * big updates * fixed chunks page * creating kb in canvas adds value and fixes updates functionality * fix ingestion for canvas * [autofix.ci] apply automated fixes * Added metadata file caching to speed up KB listing API call. # Conflicts: # src/backend/base/langflow/api/v1/knowledge_bases.py * Fixed linting and formatting issues. Tested caching for KB list call. * [autofix.ci] apply automated fixes * fixed icons * [autofix.ci] apply automated fixes * fixed jest test * fixed playwright test * updated ingestion format * fixes from qa * [autofix.ci] apply automated fixes * fix placeholder * fix deepclone * updated templates * [autofix.ci] apply automated fixes * [autofix.ci] apply automated fixes (attempt 2/3) * updates templates * fix fe test * Added file locking to avoid lock contention and SQLite connection starvation. * fixed column config * persist the column config * [autofix.ci] apply automated fixes * [autofix.ci] apply automated fixes (attempt 2/3) * added back metadata * Resolve locking error by force creating a fresh ChromaClient on every KB creation. This avoids the Read-Only 1032 Zombie Client error. Fixed ChromaClient creation to be only on creation, and reuse the client otherwise. * cris's fixes * reorganize KnowledgeBaseUploadModal file structure and update imports * [autofix.ci] apply automated fixes * tests * update google dependency version from 2.30.0 to 1.139.0 in component index * [autofix.ci] apply automated fixes * [autofix.ci] apply automated fixes (attempt 2/3) * Addressed PR comments: refactored existing code to break bigger implmentations into more testable blocks, refactored helpers into class base helpers, fixed code smells, added exhautive unit tests, extracted constant values into a separate file. * hide col details and open table * Addressed PR comments. * [autofix.ci] apply automated fixes * [autofix.ci] apply automated fixes * updated test yaml * revert yml * revert yml * [autofix.ci] apply automated fixes * [autofix.ci] apply automated fixes --------- Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> Co-authored-by: Debojit Kaushik <kaushik.debojit@gmail.com>
Langflow is a powerful platform for building and deploying AI-powered agents and workflows. It provides developers with both a visual authoring experience and built-in API and MCP servers that turn every workflow into a tool that can be integrated into applications built on any framework or stack. Langflow comes with batteries included and supports all major LLMs, vector databases and a growing library of AI tools.
✨ Highlight features
- Visual builder interface to quickly get started and iterate.
- Source code access lets you customize any component using Python.
- Interactive playground to immediately test and refine your flows with step-by-step control.
- Multi-agent orchestration with conversation management and retrieval.
- Deploy as an API or export as JSON for Python apps.
- Deploy as an MCP server and turn your flows into tools for MCP clients.
- Observability with LangSmith, LangFuse and other integrations.
- Enterprise-ready security and scalability.
🖥️ Langflow Desktop
Langflow Desktop is the easiest way to get started with Langflow. All dependencies are included, so you don't need to manage Python environments or install packages manually. Available for Windows and macOS.
⚡️ Quickstart
Install locally (recommended)
Requires Python 3.10–3.13 and uv (recommended package manager).
Install
From a fresh directory, run:
uv pip install langflow -U
The latest Langflow package is installed. For more information, see Install and run the Langflow OSS Python package.
Run
To start Langflow, run:
uv run langflow run
Langflow starts at http://127.0.0.1:7860.
That's it! You're ready to build with Langflow! 🎉
📦 Other install options
Run from source
If you've cloned this repository and want to contribute, run this command from the repository root:
make run_cli
For more information, see DEVELOPMENT.md.
Docker
Start a Langflow container with default settings:
docker run -p 7860:7860 langflowai/langflow:latest
Langflow is available at http://localhost:7860/. For configuration options, see the Docker deployment guide.
Caution
- Users must update to Langflow >= 1.7.1 to protect against CVE-2025-68477 and CVE-2025-68478.
- Langflow version 1.7.0 has a critical bug where persisted state (flows, projects, and global variables) cannot be found when upgrading. Version 1.7.0 was yanked and replaced with version 1.7.1, which includes a fix for this bug. DO NOT upgrade to version 1.7.0. Instead, upgrade directly to version 1.7.1.
- Langflow versions 1.6.0 through 1.6.3 have a critical bug where
.envfiles are not read, potentially causing security vulnerabilities. DO NOT upgrade to these versions if you use.envfiles for configuration. Instead, upgrade to 1.6.4, which includes a fix for this bug.- Windows users of Langflow Desktop should not use the in-app update feature to upgrade to Langflow version 1.6.0. For upgrade instructions, see Windows Desktop update issue.
- Users must update to Langflow >= 1.3 to protect against CVE-2025-3248
- Users must update to Langflow >= 1.5.1 to protect against CVE-2025-57760
For security information, see our Security Policy and Security Advisories.
🚀 Deployment
Langflow is completely open source and you can deploy it to all major deployment clouds. To learn how to deploy Langflow, see our Langflow deployment guides.
⭐ Stay up-to-date
Star Langflow on GitHub to be instantly notified of new releases.
👋 Contribute
We welcome contributions from developers of all levels. If you'd like to contribute, please check our contributing guidelines and help make Langflow more accessible.