Abstract API
↗A practical API suite for IP, email, phone and other validation tasks.
FreemiumNo card
Each API has its own permanent Free tier and request/rate limits; for example Web Scraping includes 1,000 requests/month at 1 request/second.
APIs & automation
9 tools
Hookdeck Event Gateway
↗Managed infrastructure for receiving, routing, and delivering webhooks
FreemiumNo card
Free Developer plan: 10,000 events/month, 100,000 discarded requests, one user, 3-day retention. Team starts at $39/month.
Inngest
↗Durable execution for event-driven workflows, background jobs and AI agents
FreemiumNo cardOSS
Free at $0/mo: 50k executions/month, 5 concurrent steps, 500 MB span data, 10K scores, 500K events, 100K queue depth and 50 realtime connections. No card required.
Make
↗Visual workflow automation for connecting apps, APIs and business processes
FreemiumNo card
Free: 1,000 credits/month, 3,500+ apps and a 15-minute minimum scheduled interval. Core starts at $12/month for 10,000 credits.
n8n
↗Source-available workflow automation platform for visual workflows, code and self-hosting
FreemiumNo card
Free self-hosted Community Edition under the Sustainable Use License. Cloud starts with a no-card trial; Starter is €20/month billed annually.
Pipedream
↗Connect APIs and run event-driven workflows with code when you need it.
FreemiumNo card
Free development with 3,000+ connectors, 10,000+ tools/triggers and unlimited team members. Production starts on Startup at $99/month billed annually.
Temporal
↗Durable execution platform for reliable workflows and long-running applications
FreeNo cardOSS
Self-hosted MIT server is free. Temporal Cloud starts with $150 in credits for 90 days; PAYG has no base fee and starts at $50 per million Actions.
Trigger.dev
↗Durable background jobs and AI workflows in TypeScript
FreemiumNo cardOSS
$0/month Free with $5 monthly credits, 20 concurrent runs, unlimited tasks, 5 members, 10 schedules, 1-day logs and 10 concurrent Realtime connections.
Zapier
↗Connect your apps and automate repetitive work with a visual builder
FreemiumNo card
Free forever: 100 tasks/month, unlimited Zaps, Tables and Forms, two-step Zaps and 15-minute polling. Professional starts at $19.99/month.
ABOUT US
Curated tools, honestly reviewed.
Every tool in this category has been manually reviewed. Pricing, free tier limits and card requirements are checked before listing.
FAQ
Questions, answered.
Are these the best tools in this category?＋
They're the ones we'd actually use. We prioritize tools with a clear use case, a working free tier, and honest pricing, not the most popular or most marketed.
How do I filter by free tools only?＋
Use the pricing filter in the sidebar. Select Free or Freemium to narrow the list. Each card also shows whether a card is required.