Gmail.js – JavaScript API for Gmail

In plain words

Gmail.js is a JavaScript API that enables developers to interact with Gmail programmatically. It allows users to access and manipulate Gmail data through JavaScript code, making it useful for developers building browser extensions, automation tools, or Gmail integrations. The project is open-source and hosted on GitHub, inviting community contributions to its ongoing development.

written from the facts on this page · September 2026

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  InboxSDK2015 · inboxsdk.com · ▲508

  First usable API to write Gmail Apps for 1B active users

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  MailtoUI.js2019 · mailtoui.com · ▲357

  Enhance your mailto links with a convenient user interface.

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  New Gmail2018 · blog.google · ▲935

  The new version of Gmail web

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  Mimestream, a native macOS email client for Gmail2020 · mimestream.com · ▲403

  A native macOS email client for Gmail

• OS
  Open-Sourcing InboxSDK (YC S11) – Build Apps in Gmail2022 · ▲257

  Hi HN! We’re Aleem, Chris, Borys, Meichen and Zach from Streak (YC S11) and today we’re open sourcing our InboxSDK https://www.inboxsdk.com, which makes it easy to build apps for Gmail. Over 1.8B users spend their days in Gmail! Having your app built into the Gmail workflow is a better user experience and gives you great user retention. InboxSDK gives you a high-level, declarative API to insert your UI into Gmail without having to directly manipulate the DOM yourself. End users install a browser extension to use your app. The SDK can add UI to multiple areas of Gmail. For example,…

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  GMass2017 · gmass.co · ▲580

  Send email marketing campaigns INSIDE Gmail.

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  /dev/null▲468

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 22d ago · openbot.run

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  Talanoa▲340

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 27d ago · corespeed.io

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  Probabilistically Generating HN Post Titles▲683

  Life & fun · 2013 · grantslatton.com

• HD
  Hosted Docker-as-a-Service on SSDs for $5▲387

  Dev tools · 2013 · blog.copper.io

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  I'm working on an open-source Gmail replacement▲387

  Dev tools · 2013 · khamidou.github.io

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  Blinkist▲288

  Key insights from 2,000+ bestselling nonfiction books

  Life & fun · 2013 · blinkist.com

• GC
  Gitter – Chat for GitHub▲243

  Dev tools · 2013 · gitter.im

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  Import.io▲239

  Scrape the web, sans manual scripting

  AI · 2013 · import.io