Hey Product Hunt! I'm Christian, and I built Sidelong because my reading kept vanishing. I'd read books, save articles, watch talks, listen to podcasts. Then I'd sit down to write my newsletter with a blank page and a vague memory that someone, somewhere, said something perfect about this exact topic. Sidelong is the writing platform I wanted instead: - Save anything with the Chrome extension: articles, YouTube, podcasts, tweets, newsletters. Kindle highlights import too, covers included. - Every save gets a summary and key insights, and all of it becomes searchable. - When you write, your library shows up beside the draft. Relevant highlights and quotes surface as you type, and citing one takes a click. - Ask Sidelong to research a topic and a fully cited report lands in your library minutes later. - Publish wherever your readers are: clean export to Substack or Beehiiv, a free hosted blog, built-in newsletter sending, or post straight to X and LinkedIn. One thing Sidelong will never do is write your posts. It hands you material; every word on the page is yours. No AI slop ever. Writing and publishing are free forever, and every account starts with a 14 day trial of the full toolkit.

Sidelong

Turn everything you learn into writing worth reading

Turn everything you learn into writing worth reading