Sharing a category with Fragments is what puts a product on this page at all. These 18 developer tools are the closest of the ones that do, ordered by how much of Fragments’s categories and tags each one covers and how closely its own description reads like Fragments’s — that is an ordering, not a verdict. We have not tested any of them, and there is no score on this page.
Back to the Fragments listing| Tool | Pricing | Open source | Upvotes here |
|---|---|---|---|
| Manifest | Free | Yes | 0 |
| Open Interpreter | Free | Yes | 0 |
| Haystack | Contact for pricing | Yes | 0 |
| Langfuse | Freemium | Yes | 0 |
| Crit | Contact for pricing | Yes | 0 |
| Agenta | Freemium | Yes | 0 |
| Ollama | Free | Yes | 5 |
| OpenHands | Freemium | Yes | 0 |
| Unsloth | Free | Yes | 0 |
| Orkas | Free | Yes | 0 |
| Falcon LLM | Free | Yes | 0 |
| TruLens | Free | Yes | 0 |
| ChatArena | Free | Yes | 0 |
| Dify | Freemium | Yes | 16 |
| Kilo | Freemium | Yes | 0 |
| Ability.ai | Freemium | Yes | 0 |
| LibreChat | Free | Yes | 0 |
| Cline | Free | Yes | 33 |
The open source LLM router for AI agents
Manifest is an open source LLM gateway that routes requests to various providers, fixes broken requests on the fly, and offers observability tools for AI agents.
An open-source terminal coding agent
Open Interpreter is an open-source coding agent that runs in your terminal and is optimized for low-cost and open-weight models. It allows you to read files, edit code, and run commands inside an OS-level sandbox.
Open-source AI orchestration framework for production agents
Haystack is a modular framework designed to build custom AI agents and retrieval-augmented generation applications.
Open source LLM engineering and observability platform
Langfuse is an open source platform that provides tracing, prompt management, evaluation, and experimentation for AI applications and agents.
Review AI agent code changes and artifacts in a browser
Crit provides a browser-based review surface for AI coding agent changes, allowing developers to inspect code diffs, markdown plans, running web apps, and static HTML artifacts.
The open-source workspace for your agents
Agenta is an open-source workspace that allows you to build, test, and share AI agents through chat. It features tools for human-in-the-loop approvals, version control for prompts and skills, run tracing, and team collab…
Run open language models locally with one command
Ollama packages open models so they can be pulled and run on a laptop or server with a single command, exposing a local API that many tools already speak.
The open platform for cloud coding agents
OpenHands is an open-source, model-agnostic platform designed to run autonomous coding agents for software engineering tasks.
Unsloth is an open-source platform for training, running, and exporting open models locally. It provides a no-code interface, custom training kernels, dataset creation tools, and model export options for GGUF and Safeten…
Orkas is an open-source, local-first application that lets you manage a team of specialist AI agents through chat.
Advanced open-source large language and multimodal models
Falcon LLM is a family of generative large language and multimodal models developed by the Technology Innovation Institute.
TruLens instruments AI agents and applications with OpenTelemetry, providing traces and benchmarked LLM judges to score every step.
Multi-agent environments for large language models
ChatArena provides a general framework to build interactive environments for multiple large language models. It includes a collection of pre-built and community-created environments with both web and command-line interfa…
Build and ship LLM apps on one canvas
Dify combines prompt orchestration, RAG pipelines, agent tools and observability so a team can go from prototype to a deployed LLM application without stitching several products together.
Open source AI coding agent in IDE, CLI and Cloud
Kilo is an open-source AI coding agent available for VS Code, JetBrains, CLI, and cloud environments. It provides access to over 500 models with support for custom API keys and local models, featuring specialized modes f…
Sovereign agentic systems and open-source runtime
Ability.ai is an applied AI lab providing sovereign agentic systems built on Trinity, an open-source production runtime, and Cornelius, a self-improving cognitive core.
LibreChat is a customizable interface that unifies multiple AI conversations in one place. It supports model integration from providers like OpenAI, Anthropic, and AWS, alongside features such as advanced agents, secure…
Open-source coding agent for VS Code and the terminal
Cline is an open-source AI coding agent that runs inside VS Code and the terminal. It separates planning from execution so you approve a plan before it edits files or runs commands, and it supports MCP servers plus your…
This site holds four things about each of these products that are worth comparing before you open any of them, and none of them is an opinion. The pricing model above is the one recorded on the listing — a product marked Contact for pricing will cost you a sales call before it costs you anything else. The open-source column decides whether leaving later is a migration or an export. The shared categories and tags under each entry are how close the overlap with Fragments actually is: a tool covering all of Fragments’s categories is doing roughly the same job, one sharing a single category may only touch the same part of it — and a tool can be high on this page on the strength of its description alone, which means it describes the same work in the same words rather than that anybody checked it does that work well. Upvotes are votes cast here by people with accounts, and they say what this site’s readers picked, not what is best for you.
What we do not hold is a test. Nobody here has run these products side by side, so the last step is yours: open two of them and give each one the job you actually have.