Show HN: BraiNOTES, handwritten notes on your lecture PDFs in a browser tab
braiNOTES Handwritten notes and a whiteboard that run in your browser. Write with a pen, keep the pdf next to your notes. Try it now → notes.swimmingbrain.dev braiNOTES is an open source app for writing by hand, like OneNote or GoodNotes, but in a browser tab.
- ▪braiNOTES Handwritten notes and a whiteboard that run in your browser.
- ▪Write with a pen, keep the pdf next to your notes.
- ▪Try it now → notes.swimmingbrain.dev braiNOTES is an open source app for writing by hand, like OneNote or GoodNotes, but in a browser tab.
Hacker News (Front Page) files mainly under programming. We currently carry 2,638 of its stories. Top-voted stories on Hacker News.
Story provenance
Source · retrieval · rights · ranking — open for full record
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/swimmingbrain/brainotes |
| Publication time | Sun, 11 Oct 2026 23:22:29 +0000 |
| Retrieval time | 2026-10-12T01:13:49.410Z |
| Last seen | 2026-10-12T01:13:49.410Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | dQsBhEBKQL0z |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
braiNOTES Handwritten notes and a whiteboard that run in your browser. Write with a pen, keep the pdf next to your notes. Try it now → notes.swimmingbrain.dev braiNOTES is an open source app for writing by hand, like OneNote or GoodNotes, but in a browser tab. It is made for lectures: the slides open next to your notes or become the pages you write on. There is no account and no server, everything stays in your browser. Features Ballpoint, fountain pen, marker, pencil and highlighter, with pen pressure Notebooks on blank, lined, grid or dotted paper, and whiteboards without edges Write on a pdf, or read it on the side and snip parts of it into your notes Pictures, shapes, text, a lasso, an eraser and a laser pointer Export to PDF with the original pages and vector ink, or a page to PNG…
Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.