ReachOS

Grammarly for tweet reach — scores drafts against X's algo

What it does

Score your tweet drafts against 36 rules from X's open-sourced recommendation algorithm before you post. Paste a draft, get an instant score with fixes. What-If Scenarios show impact of each change: - Remove external link: +52% reach - Add an image: +38% - Post at peak time: +25% - Optimize all rules: +77% Runs entirely in the browser. No account needed. AI features (slop detection, auto-optimize) are optional and use your own API key. Free and open source (MIT).

Does the same job

all alternatives →

Tweetlio2024 · ▲263
Schedule, draft, and get inspiration for tweets
GF
Grammarly for tweet reach – 36 rules from X's sourceApr 2026 · github.com · ▲5
IM
I made a faster way to tweet than X2025 · tweettoilet.com · ▲11
CY
Control your X/Twitter feed using a small on-device LLMApr 2026 · imbue.com · ▲15
We built a Chrome extension and iOS app that filters Twitter's feed using Qwen3.5-4B for contextual matching. You describe what you don't want in plain language—it removes posts that match semantically, not by keyword. What surprised us was that because Twitter's ranking algorithm adapts based on what you engage with, consistent filtering starts reshaping the recommendations over time. You're implicitly signaling preferences to the algorithm. For some of us it "healed" our feed. Currently running inference from our own servers with an experimental on-device option, and we're working on fully…
TweetAlgorithmMay 2026 · tweetalgori.com · ▲2
Score tweets against the X algorithm + get AI rewrites
Winnow18d ago · winnowapp.app · ▲13
Grow on X by replying to the right posts

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