No moat. Still in business.

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A CRM that sits inside Gmail so teams can track deals, contacts and follow ups without leaving their inbox.

Since 2012

CRM and sales

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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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Share a link so clients mark up PDFs, drawings, videos and eLearning, with each comment tracked as a task and approvals logged.

Since 2016

Free plan · Documents and e-signature · Agencies

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A form backend that collects submissions from any HTML form and sends them to email, Slack or Zapier, for static site builders.

Since 2021

Free plan · Forms and surveys · Freelancers

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Builds architecture diagrams and system maps from prompts, code, cloud setups or docs, aimed at engineering teams.

Since 2021

Free plan · Design and images · Developers

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Secrets manager that lets dev teams and AI agents store, sync and deploy app keys and env variables across environments.

Security and passwords · Developers

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Hosted service that receives, logs and retries webhooks, with a CLI for local testing and a typed SDK.

Since 2024

Developer tools · Developers

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Open-source shared editor and headless CMS for writing technical docs, dev blogs and knowledge bases, with Git sync.

Notes and knowledge · Developers

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One API and an in-app inbox component that let software teams send notifications by email, SMS, push, chat and in-app.

Transactional email · Developers

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Build AI chat agents for support or sales and run them on your website, Slack, WhatsApp and other channels.

Subscription · Customer support

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Team chat that sorts messages into topic threads so remote teams can catch up on conversations later.

Free plan · Something else

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Task tracker for product teams that adds a public board where users vote on ideas and follow the roadmap and changelog.

Free plan · Projects and tasks · Software companies

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Sends alerts to on-call staff, handles their rotas and runs status pages so tech teams can respond to outages quickly.

Since 2020

Free trial · Uptime and monitoring · Developers

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Gives static website forms a hosted endpoint that stores submissions, filters spam and sends alerts to email, Slack or Discord.

Forms and surveys · Developers

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Hosted status pages with built-in uptime checks, so you can keep customers informed during outages and cut support tickets.

Free plan · Uptime and monitoring · Software companies

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WebSocket server for app developers that keeps realtime messages ordered and recovers them after dropped connections.

Free · Developer tools · Developers

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Self-hosted scheduler that runs, chains and logs scripts, SQL and Ansible jobs across many servers for sysadmins and MSPs.

Free plan · Developer tools · Developers

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Translates software interfaces with AI, syncs translation files through Git and lets teammates review wording.

Since 2024

Free trial · Developer tools · Software companies

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Send your own HTML form to a hosted endpoint that stores entries, holds back spam and forwards them to email or other tools.

Forms and surveys · Agencies

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Hosted backend that takes in webhooks from Stripe, Shopify and others, stores them and runs your code with queues, cron and retries.

Since 2024

Free plan · Developer tools · Developers

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Open-source error tracker that ranks frontend bugs from errors and session replays and opens fix pull requests on GitHub.

Since 2024

Uptime and monitoring · Developers

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Sends website form entries to your inbox, Slack or Google Sheets, blocks spam and warns you if a form stops getting entries.

Free plan · Forms and surveys

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Tells developers when scheduled jobs, agents, websites or APIs fail or run late, and hosts status pages for customers.

Free plan · Uptime and monitoring · Developers

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A localization platform that keeps product wording consistent across languages using glossaries, translation memory and an AI translator.

Developer tools · Developers

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Fraud and AML tooling for banks, crypto exchanges and fintechs: transaction rules, sanctions screening and case work, cloud or on premise.

Security and passwords

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Logs errors from .NET and JavaScript apps, checks site uptime and scheduled jobs, and notifies your team in chat or email.

Free trial · Uptime and monitoring · Developers

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Watches web pages for you and sends an alert when content, prices or stock levels change.

Subscription · Uptime and monitoring

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Feature flags for gradual rollouts that open a pull request to remove each flag from your code once it is done.

Free plan · Developer tools · Developers

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Self-hosted pastebin where every code snippet is a Git repo, for developers and teams who want their own Gist.

Free · Developer tools · Developers

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Runs code benchmarks on dedicated bare metal machines and flags speed regressions in pull requests before merge.

Free plan · Developer tools · 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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Sends messages from your scripts, servers or webhooks straight to the Pocket Alert app on your iPhone or Android phone.

Since 2024

Free plan · Uptime and monitoring · Developers

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Watches Linux and Windows servers and website uptime from many locations, finds running services itself and sends alerts.

Free plan · Uptime and monitoring · Developers

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Tracks domain renewals, SSL certificates and DNS records for many sites and alerts you before something lapses or breaks.

Since 2024

Subscription · Uptime and monitoring · Agencies

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A web translation editor for software teams that syncs app strings, auto-translates and hosts translation files on a CDN.

Free trial · Developer tools · Developers

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Deploys Docker Compose apps from GitHub to your own Linux servers on each push, with domains, logs and backups.

Developer tools · 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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Monitors websites, servers, cron jobs, DNS records and SSL certificates, with alerts and public status pages.

Since 2024

Free plan · Uptime and monitoring · Developers

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Gives AI assistants and agents authenticated access to over 1,500 apps so they can take actions, with a managed MCP gateway.

Pay as you go · Developer tools · Developers

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Checks websites, APIs and cron jobs every 30 seconds and confirms an outage before alerting your team.

Subscription · Uptime and monitoring · Developers

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Pull request stats, DORA dashboards, daily summaries and custom alerts built from a team's GitHub activity.

Subscription · Developer tools · Developers

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Alerts you when a cron job misses its ping or a site, certificate or domain has a problem, with status pages included.

Free plan · Uptime and monitoring · Agencies

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AI agents that test your web or mobile app like a user on each pull request and report what broke.

Since 2024

Free plan · Developer tools · Developers

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Sits in front of your server to receive webhooks from Stripe, Shopify and others, logging each one so missed events can be resent.

Free plan · Developer tools · Developers

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Shared SQL editor for data teams that stores common queries and sends scheduled results to Google Sheets or Slack.

Since 2026

Free trial · Developer tools · Developers

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Persistent cloud virtual machines with up to 60 vCPUs and optional GPUs, which coding agents drive via CLI or MCP, charged per minute.

Since 2026

Pay as you go · Developer tools · Developers

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Catches visual changes in web UIs by comparing screenshots in pull requests, with an API that coding agents can read.

Since 2025

Free plan · Developer tools · Developers

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Gives each AI agent an alias so agents and people can message each other over MCP and A2A, with a Slack bridge.

Since 2026

Free plan · Developer tools · Developers