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SynapseClean
Compact web copy into AI prompts — 100% on-device
SynapseClean intercepts copy and compacts messy webpage selections into clean Markdown outlines before they hit Claude, ChatGPT, or Gemini. Two-phase pipeline: rules strip boilerplate instantly with zero network calls; optional Gemini Nano refines in the background when Chrome's Prompt API status is available — often ~90% smaller on large pastes. Wait for the final toast before pasting when Gemini is refining. Triggers: auto-copy, Alt+Shift+C, context menu. MIT licensed. Free forever
If you research in the browser and paste into AI chats, you know the pain: you copy one article and your clipboard becomes a landfill — cookie banners, nav crumbs, newsletter CTAs, related-post spam, and footer legal text all hitch a ride into Claude or ChatGPT. One bloated paste can eat a whole premium message.
I got tired of manually cleaning every selection, so I built SynapseClean. It intercepts copy the moment you select text (or when you hit ⌥⇧C / Alt+Shift+C) and compacts it locally into a laser-focused prompt outline — often turning ~4,000 words into ~400.
What makes SynapseClean different:
Two-phase, 100% on-device — Rule-based compaction writes to your clipboard instantly with zero network calls. If Gemini Nano is enabled and Chrome's Prompt API status is available, a background pass refines that output for the tightest shrink (~90% on large pastes). Your text never leaves the browser. Wait for the final toast before pasting when Gemini is refining.
Zero friction — Auto-copy intercept, keyboard shortcut, or right-click context menu. Output lands on your clipboard ready to paste into Claude, ChatGPT, Gemini, Copilot, Perplexity, and more.
Real research workflows — Markdown, outline, or bullet output formats. Strips comment sections, ads, and invisible HTML artifacts.
I built this for researchers, writers, students, and anyone who lives in 30 tabs and 5 AI chats. Same privacy-first philosophy as my other project Arcrawls — local AI that actually respects your data.
Would love your feedback: what sites produce the worst copy-paste garbage for you? And what output format (outline vs bullets vs Markdown) do you reach for most?
Happy compacting!
About SynapseClean on Product Hunt
“Compact web copy into AI prompts — 100% on-device”
SynapseClean was submitted on Product Hunt and earned 8 upvotes and 4 comments, placing #79 on the daily leaderboard. SynapseClean intercepts copy and compacts messy webpage selections into clean Markdown outlines before they hit Claude, ChatGPT, or Gemini. Two-phase pipeline: rules strip boilerplate instantly with zero network calls; optional Gemini Nano refines in the background when Chrome's Prompt API status is available — often ~90% smaller on large pastes. Wait for the final toast before pasting when Gemini is refining. Triggers: auto-copy, Alt+Shift+C, context menu. MIT licensed. Free forever
On the analytics side, SynapseClean competes within Chrome Extensions, Productivity, Developer Tools and GitHub — topics that collectively have 1.3M followers on Product Hunt. The dashboard above tracks how SynapseClean performed against the three products that launched closest to it on the same day.
Who hunted SynapseClean?
SynapseClean was hunted by FujiDevv. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of SynapseClean including community comment highlights and product details, visit the product overview.
FujiDevv
Hi Product Hunt! 👋
If you research in the browser and paste into AI chats, you know the pain: you copy one article and your clipboard becomes a landfill — cookie banners, nav crumbs, newsletter CTAs, related-post spam, and footer legal text all hitch a ride into Claude or ChatGPT. One bloated paste can eat a whole premium message.
I got tired of manually cleaning every selection, so I built SynapseClean. It intercepts copy the moment you select text (or when you hit ⌥⇧C / Alt+Shift+C) and compacts it locally into a laser-focused prompt outline — often turning ~4,000 words into ~400.
What makes SynapseClean different:
Two-phase, 100% on-device — Rule-based compaction writes to your clipboard instantly with zero network calls. If Gemini Nano is enabled and Chrome's Prompt API status is available, a background pass refines that output for the tightest shrink (~90% on large pastes). Your text never leaves the browser. Wait for the final toast before pasting when Gemini is refining.
Zero friction — Auto-copy intercept, keyboard shortcut, or right-click context menu. Output lands on your clipboard ready to paste into Claude, ChatGPT, Gemini, Copilot, Perplexity, and more.
Real research workflows — Markdown, outline, or bullet output formats. Strips comment sections, ads, and invisible HTML artifacts.
Open source forever — MIT licensed at github.com/fujiDevv/synapseclean. No Pro tier, no license keys, no accounts.
I built this for researchers, writers, students, and anyone who lives in 30 tabs and 5 AI chats. Same privacy-first philosophy as my other project Arcrawls — local AI that actually respects your data.
Would love your feedback: what sites produce the worst copy-paste garbage for you? And what output format (outline vs bullets vs Markdown) do you reach for most?
Happy compacting!