18.4
Dify is an open-source platform for building AI applications with workflows, knowledge retrieval, model management, observability, and tools.
Free planOpen sourceWebAPIExtension
Best Tool Agents in 2026
Tool agents connect models with services and workflows. Compare model choice, built-in connectors, included runs and API access to match the work you want to set up. Platform support spans web, API, macOS, Windows, self-hosted and Linux. Check Android access for the tool you are considering, along with workflow features and deployment needs.
28.4
Gemini is a software service with web search, file uploads, image generation, mobile apps, app integrations, and a team workspace.
Free planAndroidiOSWeb
38.2
Microsoft Copilot is an AI assistant available on the web, Windows, macOS, iOS, and Android.
Free planAndroidiOSWeb
- 4
Browser Use
Browser Use is a web service for running browser tasks with hosted AI agents and managed stealth Chromium browsers.
Open sourceWebAPILinuxmacOS7.7 - 5
Devin
Devin is an AI coding tool that Cognition describes as an autonomous software engineer.
Free planWebAPILinuxmacOS7.7From $20 a month - 6
Intercom
Intercom is a customer messaging and support platform for businesses serving customers through a website, app, or product experience.
AndroidiOSWeb7.7From $19 a month - 7
BrowserOS
BrowserOS is a free, open-source browser based on Chromium that uses AI agents to handle web tasks from natural-language instructions.
Free planOpen sourceAPIExtensionLinuxmacOS7.6Free plan - 8
Aside
Aside is an AI browser for carrying out complex tasks across websites where a user is already signed in.
Free planAPImacOSWindows7.5From $200 a year - 9
Zapier
Zapier is a web-based automation service for connecting apps through workflows called Zaps.
Free planWeb7.5From $19.99 a month - 10
Relevance AI
Relevance AI is a web platform for building specialist AI agents and connecting their actions into simple tasks or multi-step workflows with conditional logic.
Free planWeb7.4From $19 a month - 11
Flowise
Flowise is an open-source platform for building generative AI agents and workflows based on large language models.
Free planWebAPILinuxmacOS7.2From $35 a month - 12
Lindy
Lindy is an AI teammate for connecting work tools and handling recurring or multi-step tasks.
Free planWebExtension7.1From $29.99 a month - 13
Dust
Free planWebAPIExtension6.9From €288 a year - 14
Gumloop
WebAPI6.7From $37 a month - 15
augLab
WebAPI6.5From $99 a month - 16
Kore.ai
WebAPISelf-hosted6.5 - 17
StackAI
StackAI is a no-code platform for building AI agents, from their backend logic to their interfaces and analytics.
Free planWebAPIExtensionSelf-hosted6.4Free plan - 18
Tandem Browser
Tandem Browser is an open-source, local-first browser that lets AI agents work through the user's browser session, including tabs, cookies, and the DOM.
Free planAPILinuxmacOSWindows6.3Free plan - 19
Cognigy
WebAPISelf-hosted5.9 - 205.8From $530 a month
- 215.8Free plan
- 22
UiPath Agentic Automation
Free planWeb5.8Free plan - 23
Sierra
Web5.6 - 245.5From $10 a month
- 254.8
Choosing well
Check where it runs
The listed platforms are web, API, macOS, Windows, self-hosted and Linux. Match deployment to the devices and systems your workflow can reach.
If you plan to use a Xiaomi, Redmi or POCO phone, confirm Android access before choosing; a web service may still be usable through a browser.
Compare free and paid access
A free plan is available from products in this category, while other plans use paid pricing or pricing on request. Check what the free plan includes before committing.
Use the paid-from figure as a starting point, then check included runs and any usage limits that affect your workflows.
Match models and connectors
Compare model choice with the built-in connectors you need. Connector coverage can determine whether a tool fits your existing services without extra setup.
Review the available models and integrations for the tasks you want the agent to handle.
Review deployment and logs
Deployment options include hosted services and self-hosted setups. Choose the approach that fits your operating environment and administration needs.
Audit logs are a comparison field here. Check whether the logging details suit the way you need to review agent activity.
Plan workflow and API use
A workflow builder can help you assemble actions, while API access can connect the agent to other software. Compare both when the tool must fit into a wider system.
Open-source code is offered by products in this category. If you need to read or change the code, check the licence and deployment requirements.
Questions people ask
Can I try a tool agent for free?
A free plan or free trial is available from products in this category. Check the plan terms, included runs and paid-from price for the product you want.
Are open-source tool agents available?
Open-source code is offered by products in this category. Review the licence and deployment requirements before using or modifying the code.
What should I compare between tool agents?
Compare free plan, paid from, deployment, model choice, built-in connectors, included runs, API access, workflow builder and audit logs.
Can I run a tool agent myself?
Self-hosted deployment is a listed platform option. Confirm that the product supports your operating system and review its setup and licence terms.