Trending open-source AI agents
The 25 listed open-source projects that gained the most GitHub stars between Oct 18 and Oct 25, 2026, from our daily snapshots of each repo.
Updated
Quick answer: the top picks on this list, ranked by GitHub stars and listing maturity, are REA, Orca and DeepSeek Harness, out of 25 tools listed below. At a glance: 23 open-source, 24 free or freemium and 20 local or self-hosted across 25 link-checked tools (last verified ).
Verified on : every tool link on this page was checked by our daily link check. No paid placements.
Ranked comparison (top 10)
| # | Tool | Pricing | Best for | Open source | Runs locally | GitHub stars |
|---|---|---|---|---|---|---|
| 1 |  REA | Open source | write code, research the web | Yes | Self-hosted | 301,645 |
| 2 |  Orca | Open source | write code | Yes | Self-hosted | 94,443 |
| 3 |  DeepSeek Harness | Open source | build an agent | Yes | Self-hosted | 251,853 |
| 4 |  Graphify | Open source | write code | Yes | Self-hosted | 127,237 |
| 5 |  opencode | Open source | write code | Yes | Self-hosted | 213,329 |
| 6 |  HyperFrames | Open source | film & TV production | Yes | Self-hosted | 66,201 |
| 7 |  PPT Master | Open source | productivity | Yes | 63,293 | |
| 8 |  Agent-Reach | Open source | build an agent, research the web | Yes | Self-hosted | 98,176 |
| 9 |  Paperclip | Open source | build an agent | Yes | Self-hosted | 103,425 |
| 10 |  NVIDIA OpenShell | Open source | write code, run code safely | Yes | Self-hosted | 16,156 |
#1 REA
MCP server and CLI that lets coding agents reverse engineer native binaries, Electron and JavaScript apps, .NET assemblies and live websites, using Ghidra, Hopper or IDA under the hood.
#2 Orca
Agent development environment for running a fleet of parallel coding agents on your own subscriptions and reviewing their work.
#3 DeepSeek Harness
DeepSeek's open-source agent harness with a local web UI, built so that every tool, model and scheduled task is a swappable plugin; still a developer preview.
#4 Graphify
Turns a codebase plus its docs, SQL schemas, configs and PDFs into a knowledge graph that coding agents can query.
#5 opencode
Open-source terminal coding agent that works with many model providers.
#6 HyperFrames
HeyGen's open-source framework that renders HTML, CSS and animations into deterministic MP4 videos, usable from a CLI or by coding agents through skills.
#7 PPT Master
AI tool that turns documents or topics into native, editable PowerPoint decks with real shapes, charts, transitions and narration from speaker notes.
#8 Agent-Reach
Lets an AI agent read and search sites like X, Reddit, YouTube and GitHub through one toolkit, without paid APIs.
#9 Paperclip
Self-hosted app for running a team of AI agents like a small company, with org charts, goals, budgets and approval gates across Claude Code, Codex, OpenClaw and other harnesses.
#10 NVIDIA OpenShell
Sandboxed runtime for autonomous agents with declarative YAML policies on file, network and credential access.
#11 OmniRoute
Self-hosted AI gateway that puts hundreds of model providers behind one endpoint for Claude Code, Codex, Cursor and others, with quota-aware fallback and MCP/A2A support.
#12 Ruflo
Open-source multi-agent meta-harness for Claude Code, Codex, and MCP clients; Oct 13 release adds Mods (mission workflows) and a single control plane with human approval.
#13 CC Switch
Desktop manager for Claude Code, Codex, Gemini CLI, OpenCode, OpenClaw and other coding agents that switches API providers in one click and manages MCP servers, skills and prompts.
#14 Hindsight
Agent memory system that stores experiences and learns from them so agents improve over time.
#15 Firecrawl
Turns websites into clean, LLM-ready data for agents.
#16 Strix
Open-source AI agents that run penetration tests on your app to find and help fix security vulnerabilities.
#17 OpenMontage
Open-source agentic video production system with ready pipelines and tools that agents use to edit and assemble videos.
#18 Google ARTEMIS
Google's tool that turns natural-language instructions into Android automation.
#19 Hermes Agent (Nous Research)
Open-source agent harness; v0.21.7 stable shipped Oct 12, v0.22.0 RCs Oct 13-14.
#20 Headroom
Library, proxy and MCP server that compresses tool outputs, logs, files and RAG chunks locally before they reach the LLM, cutting tokens for coding agents.
#21 OpenUI
Framework-agnostic generative UI framework with a compact streaming language and runtimes for React, Vue, Svelte and Angular.
#22 ego lite
Free macOS browser where Claude Code or Codex run automation tasks in their own isolated Spaces next to your tabs, reusing your logged-in sessions through an agent skill.
#23 Career Ops
Open-source job search agent that scans job boards and scores each posting against your CV before you apply.
#24 Text-to-CAD
Gives agents tools to create CAD models from text.
#25 Context Mode
Context window optimizer for coding agents that sandboxes tool output and persists session memory.
See also: Most-starred open-source agents (all time) · All best lists