Free plan689 of 5260 tools

The pricing page names a free plan, the product is free, or it is open source. Read off the vendor's own page, with the date.

Ranked by use

V0 Dev
vercel.com
Deploys and runs applications and AI agents on serverless infrastructure with sandboxed environments and model gateways.
Developer toolsFrom $20/mo
Widely usedActivity not read yetsince 2015
#2 of 2872
Parallel Web Systems
parallel.ai
Provides web search API for AI agents to retrieve real-time information with citations.
LLM operationsFree plan
Widely usedActivity not read yetsince 2023
#9 of 2872
PostHog
posthog.com
Ingests product data and runs AI agents to investigate issues and recommend product improvements.
Developer toolsFree plan
Widely usedMaintainedsince 2026
#12 of 2872
Evidence
evidence.dev
Defines analytics dashboards and reports as code in version control, with an agent that answers data questions in natural language.
AnalyticsFree plan
Widely usedActivity not read yet
#23 of 2872
Mistral
mistral.ai
Provides frontier language models, agents, and infrastructure for building custom AI systems.
SecurityFree plan
Widely usedActively maintainedsince 2023
#22 of 2872
ElevenLabs
elevenlabs.io
Generates synthetic speech, creates videos and music, and deploys conversational voice agents across 70 languages.
VoiceFrom $6/mo
Widely usedActivity not read yetsince 2022
#25 of 2872
GrowthBook
growthbook.io
Runs A/B tests, manages feature flags, and analyzes product data from your data warehouse.
Analytics Developer toolsFrom $40/user/mo
Widely usedActively maintainedsince 2026
#30 of 2872
Devin
devin.ai
Executes software engineering tasks including code migrations, bug fixes, testing, and documentation generation across multiple repositories.
Developer toolsFrom $20/mo
Widely usedActively maintainedsince 2026
#33 of 2872
Airbridge GO
airbridge.io
Attributes ad campaigns to subscription revenue for mobile apps.
MarketingFrom $40/mo
Widely usedActively maintainedsince 2026
#36 of 2872
Flow
wisprflow.ai
Converts speech to polished text in any application across devices.
Knowledge MeetingsFrom $12/user/mo
Widely usedActively maintainedsince 2026
#37 of 2872
Apify
apify.com
Marketplace of web scraping and data extraction tools for AI agents and applications.
DataFrom $19/mo
Widely usedActivity not read yetsince 2016
#41 of 2872
Otter
otter.ai
Transcribes meetings, generates summaries and action items, syncs insights to CRM and connected apps.
MeetingsFree plan
Widely usedActivity not read yet
#42 of 2872
Cursor
cursor.com
AI coding agent that writes code, runs tasks, and reviews pull requests autonomously or with human direction.
Developer toolsFrom $20/user/mo
Widely usedActivity not read yetsince 2023
#44 of 2872
Brex
brex.com
Issues corporate cards, manages expenses and accounting, and provides banking services for businesses globally.
FinanceFrom $12/user/mo
Widely usedActivity not read yetsince 2017
#46 of 2872
PushEngage
pushengage.com
Sends push notifications across web, mobile app, WhatsApp, and chat to automate customer engagement and recover revenue.
Marketing Developer toolsFree plan
Widely usedMaintainedsince 2026
#48 of 2872
Replit
replit.com
Builds and deploys web apps, websites, and agents from natural language descriptions.
Developer toolsFrom $20/mo
Widely usedActivity not read yet
#47 of 2872
Smartling
smartling.com
Orchestrates translation and localization workflows combining AI translation with human linguists and integrations to 50 platforms.
LocalizationFree plan
Widely usedActivity not read yetsince 2009
#45 of 2872
OpenRouter
openrouter.ai
Routes API requests to 500 language models across 80 providers through a unified interface.
LLM operationsFree plan
Widely usedActivity not read yetsince 2023
#49 of 2872
Databox
databox.com
Connects business data and metrics to AI agents that analyze performance, generate reports, and automate recurring analysis workflows.
Analytics MarketingFrom $71/user/mo
Widely usedActively maintainedsince 2012
#52 of 2872
HeyGen
heygen.com
Generates realistic AI videos with lifelike avatars, voice cloning, and multilingual translation from text or existing footage.
MarketingFrom $29/mo
Widely usedActivity not read yet
#51 of 2872
Descript
descript.com
Records, transcribes, and edits video and audio with text-based editing and AI tools.
MarketingFrom $16/user/mo
Widely usedActivity not read yetsince 2017
#59 of 2872
Notion
notion.so
Workspace for capturing knowledge, finding answers, and automating tasks with AI agents.
KnowledgeFrom $10/user/mo
Widely usedActivity not read yetsince 2016
#61 of 2872
OpusClip
opus.pro
Converts long-form videos into short-form clips with automated captions, reframing, and publishing to social platforms.
MarketingFrom $15/mo
Widely usedActivity not read yetsince 2022
#60 of 2872
Gumloop
gumloop.com
Builds and deploys autonomous agents that automate business tasks like sales pipeline management, prospect research, and CRM updates.
AgentsFrom $37/mo
Widely usedActivity not read yet
#65 of 2872
n8n
n8n.io
Builds and deploys automation workflows combining visual and code interfaces with AI agent capabilities and 500+ integrations.
AutomationFrom $20/mo
Widely usedActivity not read yetsince 2019
#63 of 2872
Seamless.AI
seamless.ai
Finds verified business contacts and automates sales outreach across email, calling, and social channels.
SalesFrom $1/user/mo
Widely usedActivity not read yet
#67 of 2872
Caspi
caspio.com
Builds custom business applications from descriptions using AI, with visual editor and database backend.
DataFrom $300/mo
Widely usedActively maintainedsince 2000
#69 of 2872
Jasper
jasper.ai
Generates on-brand marketing content and executes workflows through AI agents across channels.
MarketingFrom $59/user/mo
Widely usedActivity not read yet
#71 of 2872
Writer
writer.com
Deploys AI agents to automate marketing and sales workflows including content creation, personalization, and campaign optimization.
MarketingFree plan
Widely usedActivity not read yetsince 2020
#70 of 2872
Apollo.io
apollo.io
Unifies prospect data and runs background agents to automate outreach, research, and meeting booking across sales tools.
SalesFree plan
Widely usedActivity not read yetsince 2015
#75 of 2872
Bitrise
bitrise.io
Automates building, testing, and deploying iOS and Android apps with remote caching and release management.
Developer toolsFrom $89/mo
Widely usedActively maintainedsince 2014
#76 of 2872
Browserbase
browserbase.com
Provides browser automation and web interaction APIs for agents to navigate, extract data, and complete tasks on websites.
DataFrom $20/mo
Widely usedActivity not read yet
#78 of 2872
Crowdin
crowdin.com
Manages translation workflows and syncs localized content across software, websites, games, and marketing materials.
LocalizationFree plan
Widely usedActivity not read yetsince 2009
#73 of 2872
Exa
exa.ai
Provides web search API and data indexing for AI agents with real-time web crawling and structured data extraction.
DataFree plan
Widely usedActivity not read yet
#81 of 2872
Krisp
krisp.ai
Removes background noise, transcribes meetings, generates summaries, and converts accents in real time.
MeetingsFrom $16/user/mo
Widely usedActivity not read yetsince 2017
#72 of 2872
Mastra
mastra.ai
TypeScript framework for building, deploying, and observing AI agents and workflows.
Developer toolsFrom $250/mo
Widely usedActively maintainedsince 2024
#80 of 2872
Surfer SEO
surferseo.com
Analyzes web pages and generates optimization recommendations to improve search rankings and content performance.
MarketingFrom $49/mo
Widely usedActivity not read yetsince 2017
#84 of 2872
Warp
warp.dev
Runs fleets of coding agents across software development workflows defined in code.
Developer toolsFrom $20/mo
Widely usedActivity not read yet
#74 of 2872
Knack: No-Code Application Development Platform
knack.com
Builds custom business applications and databases without code using AI assistance.
Health Developer toolsFrom $59/mo
Widely usedActively maintainedsince 2010
#85 of 2872
LangChain
langchain.com
Builds and deploys agents with observability, evaluation, and monitoring tools.
Retrieval (RAG)From $39/user/mo
Widely usedActivity not read yetsince 2023
#86 of 2872
Lindy
lindy.ai
Executes tasks across connected tools like email, Slack, and CRM by learning your workflows and operating on a schedule.
AgentsFree plan
Widely usedActivity not read yet
#87 of 2872
Pinecone
pinecone.io
Stores and retrieves vector embeddings at scale for retrieval-augmented generation and agent knowledge systems.
Retrieval (RAG)From $20/mo
Widely usedActivity not read yetsince 2019
#88 of 2872
Appwrite 2.0
appwrite.io
Provides authentication, databases, storage, serverless functions, messaging, and hosting for building applications and AI agent workflows.
Developer toolsFrom $25/mo
Widely usedActively maintainedsince 2019
#100 of 2872
Firecrawl
firecrawl.dev
Searches, scrapes, and interacts with websites to provide clean data for AI agents.
DataFrom $16/mo
Widely usedActivity not read yetsince 2022
#103 of 2872
Fireflies
fireflies.ai
Transcribes, summarizes, and analyzes meeting conversations across multiple platforms and languages.
MeetingsFrom $10/user/mo
Widely usedActivity not read yet
#101 of 2872
Flixier
flixier.com
Browser-based video editor with AI-assisted editing, subtitle generation, and cloud rendering.
AgentsFrom $19/user/mo
Widely usedActively maintainedsince 2026
#99 of 2872
Intercom
intercom.com
Helpdesk and AI agent that handles customer support conversations across email, chat, phone, and other channels.
SupportFrom $19/user/mo
Widely usedActivity not read yetsince 2011
#94 of 2872
MarketMuse
marketmuse.com
Analyzes content inventory and competitor gaps to recommend topics and content plans for ranking.
MarketingFree plan
Widely usedActivity not read yetsince 2013
#96 of 2872

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
The line and the use cases are written by us from the homepage, one row at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.