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Enhance Google searches with your past research. Without learning a new app.

Heyday is a browser extension that automatically organizes your research. 

When you visit pages online, Heyday saves them. Then it resurfaces that content alongside Google search results, overlays it on articles, and curates it into topics.


Become smarter with no extra effort

Create a knowledge base that fills itself

You spent hours this week doing research. You don’t have extra time to paste every key resource into a Google Doc.

Heyday’s algorithm understands how much time you spend reading articles and their subject. Then, it automatically curates them into topics to grow your knowledge.

My brain can’t be bothered to collect and organize information as I consume it… it’s just not wired that way. Heyday has been amazing at being my AI assistant, never letting me forget or lose track of information I’ve already checked out.

Daniel Zarick

CEO, Arrow.to

More than articles and webpages

No more struggling to remember where you saw something. Heyday resurfaces documents, messages, files, newsletters, notes, presentations, spreadsheets, tweets, and more.

Conversations and Meetings



Google Calendar

Documents and Notes

Google Drive




Social Media and more




You’re in good hands with Heyday

I've tried every Personal Knowledge Management tool possible and Heyday just blows them all out of the water. This is not an exaggeration.

Eli Velez

Marketing & Partnerships, Roc Nation

Immediate Value

Install our extension and integrate your apps. Then Heyday will resurface content you forgot about in seconds.


Heyday encrypts your data so you’re the only person who sees it.


Heyday is a $10/month paid-only product. Our only incentive is to protect your privacy.

People who do a lot of research love Heyday

I've been using Heyday for a few months and it has done an exceptional job helping me resurface content without having to worry about saving, bookmarking, or keeping tabs open. Which is amazing, because I've been a chronic and incorrigible tabhog for years.

James Rosen-Birch

Founder, Stealth

The beauty of Heyday is that it works seamlessly alongside you without being annoying. When you go looking for it, it's loaded with incredibly useful content that makes life easier, smarter, and just downright enjoyable.

Jack Cohen

Vice President, FirstMark Capital

Heyday is a great product for creators and knowledge workers alike. It basically functions as an extension of my memory that's searchable, shareable & easily manipulated.

Kyle O'Brien

Founder, Startup ROI

Heyday just works. I highly recommend it for anyone who has 100+ browser tabs open, is drowning in sticky notes (digital or otherwise), or needs to keep track of research information over time.

Shaun Nestor

Founder, Shaun Nestor Brands

As a product person and founder at a startup, I'm constantly reading up on our problem space and customers. Heyday ties it all together.

Chris Shilling

Founder, Driveway

As someone with a sloppy brain who spends a lot of time on the internet, Heyday's ability to organize everything for me is a life-saver.

Packy McCormick

Investor, Not Boring Capital

I love that it passively combs my history and contextualizes for me. In my case, I look at a lot of papers, and I'm always going, "where did I see that?" With Heyday I can quickly find it.

Noah Rosenberg

Founder, Sundial

Your product has been the best bookmarking and topic organizing browser extension I have used. I dislike most of the reference apps so I type my own manually. Finding what I've read previously online has always been difficult until Heyday. So thank you!

Robyn Lyn

Qualitative Researcher, University of Houston

Heyday was an easy sell: effortless bookmarks and contextual serendipity. I switched over from MyMind and haven't looked back.

Lorenzo Santos

Product Manager, ConsenSys/MetaMask

Slick! Particularly in the age of information overload when we forget what we read so fast. Love the resurfacing part - repetition makes the game.

Carlo Thissen

Founder, tl;dv

Heyday hasn't just made me feel smarter, pretty sure it's made me smarter, or at least made future me smarter.

Erik Martin

Vice President of Services, Commsor

If I had one productivity tool to use for the rest of my days, and you made me get rid of all my others, I would be fine using Heyday.

Emily Weltman

Founder, Collective Flow Publishing

I’m a long-time sufferer of ‘i read something once that said X’ then could never find the article again. Heyday fixes that and makes it easy to collate topics without having to manually tag every page.

Patrick Tomasiewicz

Comms Strategy, Anomaly

As part of my day job I go through 100s of websites every day and have to revisit many of them. Heyday has been a savior for me by surfacing the websites at the right time and right context.

Rohit Kaul

Research Analyst, Sacra

Boost your memory today.

Fast and easy setup. 14-day free trial. No credit card required.


Will Heyday seriously give me a photographic memory?

We're not doctors, but yes. Basically.

If I use Heyday, will I ever have to use bookmarks again?

Why should I trust Heyday to keep my data safe?

Which browsers does Heyday support?

How much does Heyday cost after my free trial?