Best SaaS Tools

Drop-in real-time collaboration, presence, comments, and multiplayer editing, without building the infra.

• Live presence and cursors
• Multiplayer editing
• Comments and notifications
• Conflict-free sync

Notifications infrastructure that powers email, in-app, push, and Slack messages from one API.

• Multi-channel notifications
• In-app notification feed
• Visual workflow builder
• Preference management

Works with Slack, API

Beautiful, AI-native documentation that turns your docs into a maintainable, searchable, on-brand product.

• Docs-as-code workflow
• Auto-generated API reference
• Built-in search
• AI writing and Q&A

Works with API

Open-source API key management, issue, verify, and rate-limit keys without building auth infrastructure yourself.

• API key issuance and verification
• Per-key rate limiting
• Usage analytics
• Granular permissions

Works with API

A developer-first email API that makes transactional and marketing email simple, reliable, and deliverable.

• Developer email API
• React-based email templates
• High deliverability
• Webhooks and analytics

Works with API

Open-source background jobs and durable workflows you write in plain code, no timeouts, no queues to manage.

• Long-running background jobs
• Durable workflows in code
• Automatic retries
• Run observability dashboard

Deploy apps, jobs, and preview environments on a developer platform built for scale.

• Deploy apps, jobs, and databases
• Preview environments
• Bring-your-own-cloud
• Built-in CI/CD

In-app surveys for web and mobile apps that collect sharper feedback from the right users.

• Targeted in-app surveys
• NPS, CSAT, and PMF tracking
• User segmentation
• Web and mobile SDKs

Works with Web, Mobile

Open-source link attribution for short links, conversions, and partner programs.

• Branded short links
• Conversion analytics
• Partner program tracking
• Open-source and self-hostable

Retention infrastructure that stops SaaS churn with cancel flows, retries, and win-backs.

• Personalized cancel flows
• Failed-payment recovery
• Reactivation campaigns
• Retention analytics