No moat. Still in business.

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Runs automated tests against your APIs and websites after each deploy and on a schedule, with alerts on failure.

Since 2016

Uptime and monitoring · Developers

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A hosted API for product teams to send app notifications over email, SMS, push, chat and an in app inbox.

Since 2020

Free plan · Transactional email · Developers

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A friendly client for sending and testing HTTP API requests, available in the browser, as a desktop app and in the terminal.

Developer tools · Developers

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A kanban board that shows what each AI coding agent is doing and alerts you when one needs your input.

Since 2026

Free plan · Projects and tasks · Developers

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Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.

Free plan · Security and passwords

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Point any domain at any URL with automatic HTTPS, path rules and hit analytics, no server to run.

Free plan · Website builders

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Gives you an email address that forwards anything sent to it into a WhatsApp chat or group, attachments included.

Free plan · Automation and integrations

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Build no-code dashboards from widgets that read from GitHub, Slack, Stripe, Google Workspace and your own APIs, then share by link.

Since 2025

Free plan · Data and spreadsheets

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Freelancers get new Upwork jobs matching their filters in Telegram or Slack seconds after they are posted.

Since 2025

Subscription · Something else · Freelancers

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Hosted service that runs scripted HTTP API tests on a schedule or in CI so teams know their endpoints still work.

Since 2024

Uptime and monitoring · Developers

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One API and dashboard for sending product notifications by email, SMS, push, Slack and in-app inbox.

Since 2022

Subscription · Transactional email · Developers

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Keeps pull request discussions in sync across GitHub, Slack and VS Code so dev teams and AI agents review code faster.

Free plan · Developer tools · Developers

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Runs regular speed tests on your connection and keeps a history so you can check your ISP delivers what it promised.

Free · Uptime and monitoring · Individuals and families

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A catalog engineering teams host themselves to collect REST and SOAP specs, see which services depend on which, and try out endpoints.

Since 2026

Subscription · Developer tools · Developers

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A native Mac app for developers to set up local mock endpoints, inspect incoming requests and test webhooks and API failures.

Since 2026

Developer tools · Developers

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Fixes the mixed content and insecure content warnings a WordPress site shows after it moves to HTTPS.

Website builders

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Runs API, interface and security checks on each pull request and reports genuine failures, so engineering teams catch bugs before merge.

Since 2025

Developer tools · Developers

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Offline Windows app for developers that gathers .http and .rest request files from their projects and lets them run and check each call.

Since 2026

One-off payment · Developer tools · Developers

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An offline desktop app for designing, testing and documenting APIs as Markdown files kept in your Git repo.

Since 2025

Developer tools · Developers

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Mac app that gathers questions from your terminal coding agents into one inbox so you can answer by key or voice.

Since 2026

Free · Developer tools · Developers

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Send app events with one HTTP call, then search them and get them delivered to Slack, Discord, Telegram or webhooks.

Since 2026

Free plan · Developer tools · Developers

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Deploys apps from a GitHub repo onto a server in your own cloud account, with HTTPS and redeploys on each push.

Since 2026

Free plan · Developer tools · Developers

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A Mac app for working with GitHub, covering notifications, pull request review, projects and fast keyboard search.

Since 2026

Free plan · Developer tools · Developers

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Gives AI coding agents a way to phone you when they are stuck on a choice, and turns what you say back into text for them.

Since 2026

Developer tools · Developers

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Mac menu bar app that alerts you when a Cursor, Codex or Claude Code session wants input, so you can reply or switch to it.

Since 2026

Free · Developer tools · Developers

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Keeps API specs, mock servers, tests and published docs in step from a single spec, for software teams.

Since 2026

Free plan · Developer tools · Developers

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Lets development and QA teams stand up mock HTTP APIs with switchable responses to test apps before the real API exists.

Free plan · Developer tools · Developers

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Build, test and share API requests with your team in shared workspaces, on the hosted cloud or your own servers.

Developer tools · Developers

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Sets up and manages your own cloud server to deploy Django apps, with a dashboard, CLI and API.

Since 2021

Free plan · Developer tools · Developers

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Offline API testing app that saves requests as .http files you can keep in Git, and imports Postman collections.

Since 2025

Free · Developer tools · Developers

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Records real API traffic and replays it as tests with mocked dependencies so teams catch regressions in CI.

Developer tools · Developers

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Record browser traffic and turn it into multi-step API tests stored as YAML that run in CI pipelines.

Since 2024

Developer tools · Developers

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Posts tidy GitHub and GitLab pull request updates to Slack or Teams, with reviewer DMs and daily stale PR digests.

Since 2025

Free plan · Developer tools · Developers

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Desktop and mobile app that captures HTTP and HTTPS traffic and lets developers test REST APIs, with filters and diffing.

Developer tools · Developers

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Desktop app for calling and testing gRPC, REST, GraphQL and WebSocket APIs, storing requests as files in Git.

Since 2022

Free plan · Developer tools · Developers