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Browser extension

Your browser does the reading.

It reads the Reddit thread you have open, puts your draft in the comment box, and tracks the replies you post. Nothing runs behind your back.

Start free trialHow to install
  • Chrome
  • Edge
  • Brave
  • Arc
The Upthread side panel next to a Reddit thread in your browser: the thread's priority, why it matters, its citation history, a disclosed draft, the posting checklist and Insert. On a thread that isn't in Discover, the panel says nothing was sent and offers Add to Discover. After you post, it shows Tracking this reply.

What it does

Four jobs, all on pages you open.

  • Reads the thread you open

    The post, its top comments and the subreddit's rules, from the page in front of you. That is also how Upthread sees mentions deep in a thread and rule changes.

  • Shows your drafts beside it

    A side panel with the thread's priority, why it matters, your drafts, the lint and judge results, and the posting checklist.

  • Inserts the draft

    Insert puts the text in Reddit's comment box. You edit it and click Comment. If inserting fails, it copies the text instead.

  • Tracks your reply

    It spots the comment you just posted and records its link. When you view it again, it reads the score and whether it's still up.

Install

Coming to the Chrome Web Store.

While the listing is in review, beta users load it by hand. It takes about a minute, and you get updates by loading a new build the same way.

  1. 1Ask us for the beta build at [email protected]. It comes as a zip file.
  2. 2Unzip it into a folder you keep. The browser loads the extension from that folder, so do not delete it.
  3. 3Open chrome://extensions (edge://extensions in Edge, brave://extensions in Brave) and turn on Developer mode.
  4. 4Click Load unpacked and choose the unzipped folder. Pin the Upthread icon if you like.
  5. 5In Upthread, open Settings, then Extension, and click Connect. The page finds the extension on its own.

Permissions

Exactly what it asks for.

Five permissions, each for one reason. It can't see other sites, your cookies or your browsing history.

  • sidePanelShows your drafts and the thread's context next to the page.
  • storageKeeps your connection token and settings on your device.
  • alarmsSchedules the opt-in daily check of your own replies.
  • https://*.reddit.com/*Reads the thread you open and inserts your draft. Host access, Reddit only.
  • The Upthread appTalks to your workspace: drafts, matches and tracking.

Not requested

<all_urls>cookieshistorytabswebRequest

Data

What it sends, and when.

Matching happens on your device. Page content leaves your browser only when it matches your workspace (a thread in Discover, one of your subreddits, your own replies and profile) or when you add a thread yourself.

  1. Every so oftenNothing from your browsing. It downloads hashed links (SHA-256) of your open opportunities, up to the latest 2,000, and hashed names of your subreddits, and matches the page you're on against them on your device.
  2. 1You open a thread that's in DiscoverThat thread: the post, its top comments and the subreddit's rules.
  3. 2You click Add to DiscoverThe same, for that thread.
  4. 3You open the rules, sidebar or wiki of one of your subredditsThat page's rules and text. Your subreddits are your focus subreddits and those with open threads, matched by hash on your device.
  5. 4You post a replyYour comment's link, its id, its text and when you posted it.
  6. 5You open your Reddit inboxOnly the replies to your own tracked comments.
  7. 6You open your own Reddit profileYour username, karma and account age. Never anyone else's profile.
  8. 7You view a thread with your tracked reply, or your profileYour reply's score, its reply count, and whether it's visible, removed or deleted.
  9. 8The daily check, if you turn it onThe same, for up to 25 of your own replies a day.

Never sent: pages that don't match your workspace's threads and subreddits, your browsing history, your cookies, or anything from sites other than Reddit and Upthread.

The opt-in daily check

How we catch removals you can't see.

Reddit still shows you your own comment after a moderator removes it. The only way to know is to look logged out. That's all the daily check does.

  • Off by default. You turn it on, and you can turn it off any time.
  • Only your own tracked replies. Up to 25 a day.
  • Logged out: it sends no cookies, so it sees what everyone else sees.
  • One at a time, at least 10 seconds apart, with your browser's normal User-Agent.
  • On a schedule: 1 hour, 6 hours, 1 day, 3 days, 7 days and 30 days after you post.
The extension's options: the daily check of your replies, off by default, with its schedule after posting and its daily limit.

30-day retention

Thread text the extension captures, meaning the post body, comments and rules, is deleted after 30 days. We keep the link, title and subreddit, plus what we derived from them: scores, angles and your drafts.

Connecting it

In Upthread, open Settings, then Extension, and click Connect. The extension gets a token tied to you and your workspace. We store only a hash of it, show when it was last used, and you can revoke it at any time.

Start the trial, then connect the extension.

It takes two clicks from Settings. Prefer not to install anything? You can paste threads instead.

Start free trialHow it works

No card required. 7 days with Starter limits.