ChainForge
An open-source visual programming environment for battle-testing prompts to LLMs.
GraphCanon updated 4w · GitHub synced 4w
Decision brief
Web-based visual programming tool for prompt testing on LLMs; supports local installation and Docker for advanced feature access.
Good fit when
- Need extensive features beyond web limitations
- Require automatic loading of API keys from environment variables
Avoid when
- Looking for a solution without local setup or Docker support
- Prefer not managing API keys via environment variable configuration
Observed Jul 12, 2026 · Source: enrich:decision_facts
Verify the decision
Adoption
Package downloads where a registry match exists. GitHub stars (3,013) are secondary evidence.
- Docker Hub pulls (30d)
- 161·Docker Hub API·4w
Maintenance and security
Full trust report- Maintenance
- Steady (40d since push)
- As of 4w
- Provenance
- Not a fork · Personal account
- As of 4w
- Security (OSV)
- No lockfile
- As of 1mo
Public GitHub metadata and optional OSV scans. Signals, not a guarantee. Trust methodology.
Install
npm install ChainForgeHow it fits your stack(6)
Typed graph edges - alternatives, integrations, successors, and dependencies. Ranked by relationship type, not raw GitHub stars.
Alternative
Related
Relationship graph
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Similar tools
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Evidence and technical details
Sourced facts, taxonomy, compatibility claims, README excerpt, and machine-readable endpoints.
Overview
ChainForge provides a web-based interface to create, test and evaluate large language model interactions through a visual programming approach. It supports local installation and running via Docker with extensive feature sets beyond the limited web version.
Capability facts
- Deploy
- Self-host
Source: dockerfile:Dockerfile · Jul 21, 2026
- Docker
- Dockerfile present
Source: dockerfile:Dockerfile · Jul 21, 2026
- Languages
- typescript
Source: github.language · Jul 21, 2026
Categories
Graph entities
Compatibility
Sourced claims from the README excerpt - not unsourced marketing copy.
Source: README excerpt (regex_v1, Jul 21, 2026)
d version you can load API keys automatically from environment variables, write Python code to evaluate LLM responses, or query locally-run models hosted via Ollama.Source link
Tags
README
Installation
You can install ChainForge locally, or try it out on the web at https://chainforge.ai/play/. The web version of ChainForge has a limited feature set. In a locally installed version you can load API keys automatically from environment variables, write Python code to evaluate LLM responses, or query locally-run models hosted via Ollama.
To install Chainforge on your machine, make sure you have Python 3.8 or higher, then run
pip install chainforge
Once installed, do
chainforge serve
Open localhost:8000 in a Google Chrome, Firefox, Microsoft Edge, or Brave browser.
You can set your API keys by clicking the Settings icon in the top-right corner. If you prefer to not worry about this everytime you open ChainForge, we highly recommend that save your OpenAI, Anthropic, Google, etc API keys and/or Amazon AWS credentials to your local environment. For more details, see the How to Install.
Run using Docker
You can use our Dockerfile to run ChainForge locally using Docker Desktop:
-
Build the
Dockerfile:docker build -t chainforge . -
Run the image:
docker run -p 8000:8000 chainforge
Now you can open the browser of your choice and open http://127.0.0.1:8000.
License
ChainForge is released under the MIT License.
For agents
This page has a .md twin and JSON over the API.