Free tier

Pulsetic

Pulsetic is a website uptime monitoring service that checks websites, SSL certificates, ports, TCP endpoints, keywords, cron jobs, APIs, IP addresses, and domains. It sends downtime alerts by email, S...

Pulumi

Pulumi is an infrastructure as code platform that lets teams define, deploy, and manage cloud infrastructure using real programming languages. It supports TypeScript, Python, Go, C#, Java, and YAML, g...

Pumble

Pumble is a team communication application for business workspaces. It provides channels, direct messages, threads, file sharing, voice and video calls, meeting links, screen sharing, guest access, no...

Pusher

Pusher provides hosted realtime APIs for building features such as live updates, pub/sub messaging, in-app chat, location tracking, and push notifications. Its Channels product supports publish/subscribe messaging across web and mobile clients, while Beams handles programmatic push notifications.

PythonAnywhere is a cloud platform for hosting, running, and coding Python applications in the browser. It provides a full Python environment, web-based consoles, and an editor so developers can write, test, and deploy Python code without managing their own server.

Qase

Qase is a test management platform that combines manual test case management, automated test runs, CI results, and requirement traceability in one workspace. It supports test plans, test runs, shared steps, dashboards, queries, integrations, and an MCP server for connecting AI agents to test data.

Qdrant

Qdrant is a vector search engine and vector database for building AI retrieval systems. It supports dense and sparse hybrid search, metadata filtering, multivector retrieval, reranking, and real-time indexing through REST, gRPC, and official clients.

Qonversion

Qonversion is a subscription infrastructure platform for mobile apps. It provides SDKs and backend services for subscription management, no-code paywall creation, A/B experiments, customer CRM, and real-time analytics across iOS, Android, React Native, Flutter, Unity, Capacitor, and Cordova.

Quay

Quay is a container image registry for storing and distributing OCI and Docker images, run by Red Hat. It offers repository management, image pull and push workflows, and access controls for teams hosting private or public container images.

QuickChart

QuickChart is an open-source chart image API that renders Chart.js configurations into chart images and QR codes through a URL-based API. It supports embedding charts in emails, reports, web pages, an...

Quidlo Timesheets

Quidlo Timesheets is an online time tracking and timesheet application for employees and teams. It provides a web app, mobile apps for iOS and Android, and desktop apps for Windows and macOS, with time entry through a start/stop timer or manual logging.

Raindrop.io

Raindrop.io is a bookmark manager that stores web links, articles, PDFs, videos, and files in a cloud-based library. It provides browser extensions and desktop and mobile apps for Chrome, Firefox, Safari, Edge, Windows, macOS, iPad, iPhone, and Android.

Raycast

Raycast is a macOS and Windows launcher that provides keyboard-driven access to built-in productivity tools, system actions, search, snippets, quicklinks, window management, notes, and an extension st...

Reactflow

Reactflow is a website analytics and session replay platform that records visitor activity, generates heatmaps, tracks funnels, and surfaces bugs, console logs, and feedback from the same tracking script.

Read the Docs

Read the Docs is a documentation deployment platform that connects to Git repositories and builds documentation from source on every commit. It supports public and private repositories, live pull request previews, versioned documentation, and access controls such as SSO on paid plans.

ReadMe

ReadMe is a documentation platform for building and publishing interactive API docs. It combines a WYSIWYG editor with Git-backed workflows so teams can keep documentation synchronized as they write, review, and ship APIs.

Redbooth

Redbooth is a project and task management platform with workspace-based collaboration, task boards, list and timeline views, threaded conversations, file sharing, and HD video meetings. The product in...

redirect.pizza

redirect.pizza is a domain redirect service that creates HTTP and HTTPS redirects for source hostnames without requiring the user to host redirect infrastructure. It supports 301, 302, 307, and 308 redirects, path forwarding, query parameter forwarding, and API-based redirect management.

redirection.io

redirection.io is a website traffic and redirect management service that collects HTTP request logs in real time, groups requests, and exposes traffic views for analysis. It also lets users create and...

redirs

redirs is a domain redirect service that maps custom domains to destination URLs. Users add a domain, configure redirect rules with path matching and status codes, and the service provisions HTTPS automatically on first request.

RemSupp

RemSupp is a remote desktop application for accessing and controlling Windows, macOS, and Linux devices over the internet. The product uses secure remote sessions with low-latency, P2P-first connectio...

Render

Render is a cloud platform for builders that helps teams deploy and run applications, APIs, background jobs, databases, cron jobs, and workflows with minimal operational overhead.

Rendi

Rendi is an FFmpeg API that runs FFmpeg jobs in the cloud through a REST API. Developers submit standard FFmpeg commands, then poll for results or use webhooks after processing completes. The service ...

Repeato

Repeato is a no-code mobile and web test automation tool for iOS, Android, and web applications. It records UI interactions from a mirrored device or simulator on a desktop, then saves the resulting tests to a library for later execution.

RepoFlow

RepoFlow is a package registry and repository management platform for private and public packages. It supports cloud and self-hosted deployments, with repository types for local, remote, and virtual r...

RepoForge

RepoForge is a private package registry for Python, Docker, NPM, Debian, and Conda packages. It provides a hosted registry URL for publishing and installing packages with existing tools such as pip, twine, poetry, uv, npm, Docker, and conda.

Repohistory

Repohistory is a GitHub repository analytics service that stores repository traffic data beyond GitHub's 14-day retention window. It tracks traffic history and presents it through interactive charts, traffic history views, and exportable CSV data.

Repsy

Repsy is a package repository hosting service for developers. It provides cloud-hosted and self-hosted registries for Docker, Maven, npm, PyPI, Go modules, Cargo, NuGet, Helm, and RubyGems, with API access and documentation for repository management.

Requestly

Requestly is a Git-native API client for designing, building, testing, and organizing API requests and collections on macOS, Windows, and Linux. It supports local projects stored as files, environment...

Resend

Resend is an email platform for developers that helps teams send transactional and marketing email at scale. It provides a modern API-first workflow with SDKs, SMTP, REST access, and React Email support so developers can integrate email delivery directly into their applications.

Respan

Respan is an LLM engineering platform for tracing, evaluating, optimizing, deploying, and monitoring AI agent traffic through a gateway and observability dashboard. It logs requests, traces spans, tra...

restdb.io is an online NoSQL database backend that exposes an automatic REST API and supports MongoDB query syntax. It provides schema management, data modeling, user authentication via Auth0, media storage, realtime messages, secure Ajax/CORS access, and low-code JavaScript codehooks.

Retool

Retool is a platform for building internal software, operational tools, and AI-enabled business applications. It helps teams create web apps, mobile apps, workflows, and custom logic on top of existing databases, APIs, and enterprise systems.

RevenueCat

RevenueCat is a subscription management platform that helps app businesses power purchases, manage customer data, and grow revenue across iOS, Android, Smart TV, and the web.

Reviewable

Reviewable is a code review tool for GitHub pull requests. It adds a review dashboard for handling reviews asynchronously, intelligent line mapping to preserve comments across rebases, and flexible mergeability controls such as code ownership, reviewer assignment, and custom completion conditions.

Right Feature

Right Feature is a customer feedback and product roadmap tool that collects feature requests in a central board, lets users vote and discuss ideas, and tracks status changes through to a changelog. It...

Rivestack

Rivestack is a managed PostgreSQL service with pgvector built in, running on dedicated NVMe-backed nodes in EU and US-East regions. It supports PostgreSQL 18, pgvector 0.8.x, Patroni, pgBackRest, Prometheus, Grafana, and Terraform-based provisioning.

roadmap.sh

roadmap.sh is a community-maintained platform that publishes role-based and skill-based developer roadmaps, project ideas, best practices, and guides. It organizes learning paths for areas such as fro...

Rollbar

Rollbar is an error monitoring and tracking service for software teams. It collects application errors from server, client, and mobile SDKs, groups similar issues, and attaches stack traces, telemetry...

Rollgate

Rollgate is a feature-flag platform for engineering teams. It evaluates flags locally in the SDK with sub-millisecond latency, supports scheduled changes, instant rollback, gradual rollout, user targeting, audit logs, and role-based access control.

Row Zero

Row Zero is a cloud spreadsheet for working with cloud data warehouses and large files. It supports Excel-compatible formulas, pivot tables, charts, SQL queries, native Python, and real-time collaboration in a browser-based spreadsheet interface.

Rows

Rows is an AI-powered spreadsheet and data analysis platform designed to help teams work with business data in a more flexible, collaborative way. It combines spreadsheet workflows with built-in AI, i...

Run My Job

Run My Job is a cloud CI runner service for GitHub Actions and GitLab CI. It runs each job in an isolated KVM-based microVM with ephemeral filesystem storage, and bills by CPU and memory load rather than idle runner time.

Runsite

Runsite is a cloud hosting platform for deploying web services, static sites, PostgreSQL databases, Redis-compatible caches, S3 object storage, scheduled jobs, and transactional email from GitHub or a...

Ruttl

Ruttl is a website feedback tool for live websites, mobile apps, web apps, images, and PDFs. It lets users leave pixel-level comments on pages, annotate mobile app screens, and mark up static images or PDF files for review.

Sanity

Sanity is a content operating system for building and managing structured content across websites, apps, and AI-powered experiences. It combines a configurable content studio, a real-time content back...

Scaledrone

Scaledrone is a realtime messaging service that provides WebSocket-based pub/sub messaging, message history, and user presence for applications that need live updates. The service supports publishing messages, subscribing to rooms, and fallback transport handling when WebSockets are not available.

Scalekit

Scalekit is an authentication and authorization platform for AI agents and SaaS applications. It provides delegated OAuth flows, token refresh, credential storage, scoped tool calls, and audit logs so agents can act on behalf of users without exposing credentials to the model or application code.

Scraper's Proxy

Scraper's Proxy is a proxy-based web scraping API that fetches raw webpages and supports browser-rendered and parser-based extraction workflows. It is intended for developers who need to retrieve pages anonymously through HTTP requests rather than managing their own proxy infrastructure.

Screenshot Machine

Screenshot Machine provides a website screenshot API and a website-to-PDF API for capturing online pages from code. The service supports desktop, tablet, and phone captures, full-page screenshots, portrait and landscape output, and PDF conversion with print optimization.

Screenshot Scout

Screenshot Scout is a managed screenshot API for developers. It captures screenshots of any URL through a single HTTP request and supports full-page captures, element capture, device emulation, viewport sizing, and pre-capture actions such as clicking or hiding elements.

Screenshotbase

Screenshotbase is a screenshot API that returns full-page, scrolling, responsive, and element-level screenshots from a JSON REST API. The service supports parameters for viewport size, language, country, cookie-banner handling, custom CSS and JavaScript injection, and proxy-based location emulation.

screenshotlayer API

screenshotlayer API is a website screenshot service that accepts a target URL and returns rendered screenshots as image URLs. The API supports PNG, JPEG, and GIF output, with options for full-height c...

ScreenshotOf

ScreenshotOf is a screenshot API that returns homepage captures for websites by path and date. The landing page shows example requests for domains such as /bbc.co.uk and dated captures like /bbc.co.uk/2026-04, with optional parameters for image size and output format.

Scrumfast

Scrumfast is a web-based project management tool focused on Scrum workflows. It provides task creation, sprint planning, backlog management, burndown analysis, retrospectives, and task update tracking in a lightweight interface.

Seafile

Seafile is an open source file sync and share platform that supports cloud storage, online file editing, and cross-device access. The product includes file properties, multiple file views, hierarchical tagging, collaborative docs, and a wiki for team knowledge management.

Searchly

Searchly is a managed Elasticsearch hosting service that deploys Elasticsearch clusters in seconds and handles configuration, maintenance, upgrades, and monitoring. It supports access control with sco...

SemanticDiff

SemanticDiff is a GitHub pull request review tool that renders programming-language-aware diffs for code changes. It highlights moved code, refactorings, and style-only changes, and supports review comments, approve/request-changes actions, and synchronization with GitHub.

Sender

Sender is an email marketing platform that lets users create, automate, and send email campaigns from a drag-and-drop editor or HTML editor. The pricing page lists a perpetual Free Forever plan with 1...

SendPulse

SendPulse is a multi-channel marketing automation platform that combines email marketing, chatbots, CRM, landing pages, pop-ups, web push notifications, and online course tools in one account. The fre...