Free and open first
Best Ai Agents Assistants in 2026
This list covers AI agents and assistants that run on the web, macOS, Windows, Linux, iOS, or through an API. Compare tools by automation, workflows, agent support, integrations, and access options.
- 26 apps
- Research read 7 Oct 2026
- How the order is worked out
- 1
Browser Use
by Browser Use, Inc.Free plan Open source APILinuxMac+3Choose Browser Use if you need hosted or self-hosted browser task execution with persistent sessions, recordings, and broad automation integrations.
- 2
Dify
Free plan Open source APIExtensionLinux+4Dify brings workflow building, knowledge retrieval, model connections, and several publishing options into one platform.
- 3
OpenCode
Free plan Open source APIExtensioniPhone+5Choose OpenCode if you want an open-source coding agent across terminals, desktop apps, and listed editors, with broad model support.
- 4
Aside
Free plan APIMacWindowsChoose Aside if you want an AI browser that can work across logged-in sites and computer files, with editable on-device memory and credential autofill.
- 5
Claude Code
Free plan AndroidAPIExtension+6Claude Code brings coding-agent tools to several IDEs and platforms, but the Free plan does not include it. Compare the included usage and billing terms of Pro and Max before selecting a plan.
- 6
Cursor
Free plan APIiPhoneLinux+3Cursor offers coding-agent workflows from a free entry plan through paid individual, team, and enterprise options.
- 7
Devin
Free plan APILinuxMac+2Devin combines coding assistance with an agent that can carry work toward a merge-ready pull request. Review plan limits and usage allowances when choosing a tier.
- 8
Dust
Free plan APIExtensionWebDust combines agent creation, company connectors, collaboration, and scheduled workflows, with a free tier and paid annual-billed plans.
- 9
- 10
Genspark Design
Free plan AndroidiPhoneLinux+3 - 11
GitHub Copilot
by GitHub CopilotFree plan AndroidExtensioniPhone+4Copilot offers coding assistance across editors, GitHub, mobile, and CLI workflows, with individual and organization plans.
- 12
Elicit
Free plan APIWebElicit brings paper search, document-based workflows, and cited outputs into one research assistant. The free Basic plan has usage limits, while API access is reserved for Pro and higher.
- 13
Notion
Free plan AndroidiPhoneMac+2Notion brings notes, databases, collaboration, and search features into a cloud workspace. Review the Free plan's file, block, and guest limits before choosing it for a team.
- 14
Jules
Free plan APILinuxWebJules handles repository changes through an approval-first plan and pull-request workflow.
- 15
- 16
- 17
- 18
HyperWrite
Free plan ExtensionHyperWrite brings writing assistance, document editing, research search, and browser tools together, with paid plans adding citations and different message limits.
- 19
You.com
Free plan AndroidAPIiPhone+1You.com groups web search, extraction, research, and grounded-answer APIs for developer applications.
- 20
UseAgent
Free plan LinuxSelf-hostedWebUseAgent combines AI coworkers with team knowledge, integrations, run history, and approval controls. The plans are free, but users pay their AI providers for model usage and computer time.
- 21
SWE-agent
Free plan LinuxMacSelf-hosted+2SWE-agent offers a configurable research-oriented agent for repository work, vulnerability investigation, and custom tasks across major desktop systems.
- 22
Relevance AI
Free plan WebRelevance AI offers workflow-building tools, model access, integrations, and security controls, with plan limits varying by tier.
- 23
OpenAgent
Free plan LinuxMacWeb+1 - 24
OpenClaw
Free plan AndroidiPhoneLinux+3 - 25
Factory Droid
Paid AndroidAPIExtension+5Factory Droid combines repository-aware coding automation with adjustable autonomy and broad interface support. Its paid structure and plan-specific computer access are important considerations.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Check whether a tool has a free plan or trial, what its paid price starts at, and whether its licence lets you read or change the code. Before choosing, review platform support, hosting, connectors, API access, and team seats.
Questions
Are free plans available for these AI agent tools?
A free plan is offered by tools on this list. Check the terms for the tool you are considering, since free access can differ from paid access.
Do tools in this category offer free trials?
A free trial is offered by tools on this list. Check the trial terms, duration, and what features or usage it covers before signing up.
Can I use an open-source AI assistant?
Open-source code is offered by tools on this list. If you need to read or change code, check the tool's licence and self-hosting option.
Which platforms can these tools run on?
Platforms represented here include web, macOS, Windows, Linux, API, and iOS. Check the platform details for the tool you want.
What features should I compare?
Compare free plan, paid-from price, browser automation, workflow builder, multi-agent support, API access, knowledge connectors, self-hosting, and included team seats.