Freemium
Backend Services
Ready-made backends, sign-in, email, storage and search so you skip building them.
65 tools
Latest Tools
6 tools
Freemium
DocRaptor
HTML to PDF API that renders pages with the Prince PDF engine
Documents and FormsHTML to PDF API
Freemium
Formspree
Form backend that receives and handles submissions from static sites
Documents and FormsForm backend for static sites
Free trial
Open source
Centrifugo
Self-hosted server for realtime messages and live updates
Realtime and VideoScalable realtime messaging
Freemium
ConfigCat
Feature flags with targeting rules and percentage rollouts
Feature FlagsFeature flag service
Auth
3 toolsFreemium
Open source
Better Auth
Open source TypeScript auth framework with login, OAuth and plugins
AuthOpen source TS auth
Freemium
Authentication
10 toolsOpen source
authentik
Self-hosted open source identity provider for SSO and MFA
AuthenticationOpen source identity provider
Curated
Descope
Login and identity flows for customers, partners and AI agents
AuthenticationDrag and drop auth flows
Freemium
FusionAuth
Customer identity and access management, self-hosted or cloud
AuthenticationDeveloper friendly identity
Open source
Logto
Open source auth platform for sign-in, SSO and roles
AuthenticationOpen source auth and identity
Free trial
Okta
Identity platform for workforce and customer login and access
AuthenticationWorkforce and customer login
Open source
Ory
Open source identity and access management for apps and APIs
AuthenticationOpen source identity stack
Curated
Open source
SuperTokens
Open source user authentication with prebuilt login screens
AuthenticationOpen source auth for apps
Freemium
WorkOS
APIs for adding single sign-on and enterprise features to apps
AuthenticationEnterprise SSO and SCIM
Open source
ZITADEL
Open source identity platform for login, SSO and access roles
AuthenticationOpen source identity platform
Backend as a Service
4 toolsOpen source
Appwrite
Open source backend with auth, databases, storage and functions
Backend as a ServiceOpen backend
Freemium
Firebase
Google's app platform for hosting, databases, crash reports and AI
Backend as a ServiceApp backend
Open source
PocketBase
Single-file open source backend with database, auth and storage
Backend as a ServiceSingle-file backendArchived
Open source
Supabase
Open source Postgres backend with auth, APIs, storage and realtime
Backend as a ServicePostgres backend
Backend Platforms
4 toolsOpen source
InstantDB
Open source backend for real-time apps with a built-in database
Backend PlatformsRealtime backend for frontends
Open source
Medusa
Open source commerce engine for online stores and B2B sales
Backend PlatformsOpen source headless commerce
Open source
Nakama
Open source game backend for multiplayer and social games
Backend PlatformsOpen source game backend
Open source
Saleor
Open source headless commerce platform with a GraphQL API
Backend PlatformsGraphQL commerce platform
Documents and Forms
5 toolsFreemium
Browserless
Cloud headless browsers for AI agents and web automation
Documents and FormsHeadless browser as a service
Freemium
DocRaptor
HTML to PDF API that renders pages with the Prince PDF engine
Documents and FormsHTML to PDF API
Freemium
Formspree
Form backend that receives and handles submissions from static sites
Documents and FormsForm backend for static sites
Open source
Gotenberg
Docker API that converts web pages and documents to PDF
Documents and FormsDocker API for PDF files
Freemium
PDFShift
HTML and URL to PDF conversion API with screenshot features
Documents and FormsConvert web pages to PDF
Email and Messaging
8 toolsFreemium
Loops
Email platform for SaaS teams, from campaigns to transactional mail
Email and MessagingEmail for SaaS companies
Freemium
Mailgun
Email API for sending, receiving and tracking transactional mail
Email and MessagingEmail API for developers
Freemium
Mailtrap
Email API, SMTP and test sandbox for developer and product teams
Email and MessagingEmail testing and sending
Freemium
Nylas
API for email, calendar and meeting data across providers
Email and MessagingEmail and calendar APIs
Open source
React Email
Unstyled React components for building email templates
Email and MessagingBuild emails with React
Free trial
SendGrid
Email API and marketing campaign tools, now part of Twilio
Email and MessagingEmail delivery at scale
Paid
Free trial
Email Sending
2 toolsFree trial
Postmark
Transactional email delivery service with an API, SMTP and templates
Email SendingReliable transactional email
Freemium
Feature Flags
2 toolsFreemium
ConfigCat
Feature flags with targeting rules and percentage rollouts
Feature FlagsFeature flag service
Open source
Localization
3 toolsFree trial
Open source
Open source
Weblate
Open source localization platform for translating software
LocalizationOpen source web translation
Realtime and Video
7 toolsFreemium
Ably
Realtime messaging platform for chat, live apps and AI sessions
Realtime and VideoRealtime messaging platform
Open source
Centrifugo
Self-hosted server for realtime messages and live updates
Realtime and VideoScalable realtime messaging
Freemium
Freemium
Liveblocks
Realtime sync, presence and comments for collaborative apps
Realtime and VideoCollaboration infrastructure
Open source
LiveKit
Open source framework for voice, video and realtime AI agents
Realtime and VideoOpen source realtime video
Curated
Mux
Video API for streaming, analyzing and transforming video
Realtime and VideoVideo API for developers
Curated
Vapi
Platform for building, testing and deploying voice AI agents
Realtime and VideoVoice AI agent platform
Search
2 toolsFreemium
Open source
Meilisearch
Open source search engine with instant results and hybrid AI search
SearchOpen source search engine
Search and Maps
5 toolsFreemium
Google Maps Platform
Maps, places, routes and address APIs from Google
Search and MapsMaps routes and places APIs
Freemium
IPinfo
IP address data API for location, network and privacy details
Search and MapsIP geolocation data
Freemium
Open source
MapLibre
Open source libraries for rendering interactive vector maps
Search and MapsOpen source map rendering
Freemium
MapTiler
Map tiles, geocoding and mapping SDKs for web and mobile apps
Search and MapsMap tiles and geocoding
Storage
1 toolFreemium
Cloudinary
Cloud service to store, transform and deliver images and video
StorageImage and video hosting
Storage and Media
1 toolOpen source
UploadThing
File uploads for developers with server-side auth checks
Storage and MediaFile uploads for developers
Workflows and Webhooks
8 toolsOpen source
BullMQ
Open source background job and message queue for Node.js and more
Workflows and WebhooksRedis queue for Node
Open source
Hatchet
Open source engine for background tasks, workflows and AI agents
Workflows and WebhooksTask queue and workflows
Freemium
Hookdeck
Reliable receiving, routing and sending of webhooks and events
Workflows and WebhooksWebhook infrastructure
Open source
Prefect
Python workflow orchestration for data pipelines, ML and agents
Workflows and WebhooksPython workflow orchestration
Open source
Restate
Durable execution runtime for agents, workflows and backends
Workflows and WebhooksDurable execution runtime
Open source
Svix
Webhook sending service with retries, signatures and a portal
Workflows and WebhooksWebhooks as a service
Open source
Temporal
Open source durable execution platform for reliable workflows
Workflows and WebhooksDurable execution platform
Open source
Trigger.dev
Open source platform for background jobs and durable AI agents
Workflows and WebhooksBackground jobs in TypeScript