We benchmarked 12 open-weight models on long-context retrieval. Results surprised us
Hide the Reddit posts you don’t want to see.
A browser extension that folds away rage bait, spam and the subjects you’d rather skip. Set your filter once and scroll as usual.
Free. Coming soon to Safari.
On Reddit
Your feed, minus the noise
Sifty works inside the page you already use. Each post gets a small tag that says what Sifty decided. Posts your filter hides collapse into a one-line bar that says why, and you can always open them.
- Tags, not guesses. A post Sifty isn’t sure about stays visible and says so: “AI?”
- Nothing disappears silently. Collapsed posts say why, and “Show” brings them back.
- Hide from the post. Click a post’s tag to hide its subject, or to stop hiding it.
- The post you opened is never hidden.
Patch series adds a Rust implementation of XArray “to test if Rust delivers what it promises for a core kernel data structure”
https://lore.kernel.org/rust-for-linux/20260923-rxarray-next-v1-0…
A tour of the new garbage collector, with benchmarks
Your filter
One feed, your rules
Four switches and a strictness setting, from the toolbar or from Reddit’s header. Changes are instant, because Sifty remembers what it already read.
- Only subreddits I’ve joined
- Drops the posts Reddit recommends from subreddits you haven’t joined.
- Hide junk
- Rage bait, AI slop, spam, self-promotion and ads, whatever they’re about.
- Hide distressing posts
- Seriously upsetting posts, whatever they’re about.
- Only subjects I follow
- Pick from over 200 subjects. Follow a branch, hide one inside it: hide News, follow Odd news.
- Strictness
- How sure Sifty must be before it hides a post.
Try it: flip a switch and watch the feed.
Getting started
Set up in a minute
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1
Add Sifty to your browser
Free on the Chrome Web Store and Firefox Add-ons, coming soon to Safari. It only runs on reddit.com.
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2
Sign in with Apple, Google or GitHub
One click in the toolbar popup. Sifty uses your account only to give everyone a fair daily limit.
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3
Set your filter and scroll
Turn on what you want hidden. When a post shows you a subject you don’t want, hide it from the post’s tag.
Privacy
Reads posts, not you
Sifty reads the details Reddit shows on the posts in your feed and nothing else. It keeps no record of what you viewed.
Read the privacy policy- No trackers, ads or cookies. This site keeps only anonymous visit stats.
- Never sends your Reddit username, messages or comments.
- Runs only on reddit.com, never on other sites.
- Classifications are stored by post, not by person, and deleted after 7 days.
- Your subjects and settings stay in your browser.
Questions
Which Reddit does Sifty work on?
New Reddit, at www.reddit.com. Old Reddit (old.reddit.com) and comment threads aren’t filtered yet.
Why do I need to sign in?
Reading posts costs Sifty real money, so each account gets a daily limit. Signing in with Apple, Google or GitHub is how Sifty keeps that fair. It only asks for your name, email and profile picture.
Is there a limit?
Each account can have up to 1,000 new posts a day read. Posts Sifty has already read for anyone are free and don’t count. If you reach the limit, new posts show unfiltered until it resets.
What happens to posts Sifty hides?
They collapse into a one-line bar that says why. “Show” opens any of them, and “Stop hiding” on its tag brings back everything hidden for that reason.
What if Sifty gets a post wrong?
When Sifty isn’t sure, it leaves the post visible and marks the tag with a “?”. If it can’t read a post at all, the post stays visible with a “Sifty ⚠” tag.
Need more help?
Write to us at contact@siftyapp.com with a question, a bug or an idea. We read every message.
Keep the posts you came for.
Free. Coming soon to Safari.