A few years ago I launched PinboardSaver, and recently my wife wanted to launch something similar. She talked a lot with Claude and said she wanted to build something that could generate passive income and wouldn’t require much ongoing support.
After many chats, Claude somehow did product research and came up with the idea for this app. Then she validated the findings, vibe-coded the POC, and now the app has already been validated with real purchases.

Here are screenshots in Russian and its translation proofing that Claude did research and pointed the right niche.

------------

1st screenshot

TRANSLATION:

Great pattern. Now it’s clear what to look for.

The formula is: people want to download/export/save content from a platform, the platform does not provide it, so people google for a solution.

Let me find similar underserved niches using the same formula.

Now the picture is much clearer. Here’s the honest conclusion about the PinboardSaver formula.

What is already crowded (strong competition exists):
- Pinterest downloaders — too many of them, very saturated market
- LinkedIn saved posts — Dewey, Linkedmash, and several extensions
- Twitter/X bookmarks — also Dewey and others

What is worth checking deeper — underserved or weakly served niches using the same formula:

A few ideas where there are very few tools or existing ones are bad:

1. Etsy favorites exporter — people save hundreds of items to favorites and want to export lists for price comparison or offline shopping. Quick research shows there are almost no good solutions.

2. Goodreads “Want to Read” exporter into a nice PDF/list — huge audience, people collect thousands of books and want to share or print their reading lists.

3. Google Maps saved places exporter — people save restaurants and places, but exporting them into a useful format (PDF travel guide, CSV) is almost impossible.

Want me to quickly check one of these for real competition?

------------

2nd screenshot

TRANSLATION:

Now this is much more interesting. Here’s what we found:

The pain is real and well documented. People have been googling solutions for years, Google intentionally creates friction, and Takeout exports come without coordinates, which makes the CSV useless for most real-world cases.

There are competitors, but they are weak:

exportgooglemaps.com exists, but requires manually uploading a Takeout file (3+ steps)
takeout-tools.com — more advanced, adds coordinates through geocoding, paid

The key underserved niche is beautiful PDF/travel guide exports. Existing tools focus on technical formats like CSV, GPX, and KML for developers and GPS enthusiasts. Nobody is really building a product around:
“Upload your Google Takeout file → get a beautiful PDF travel guide with maps, addresses, and photos.”

PinboardSaver-style formula evaluation:

Organic demand is high. “Export Google Maps saved places” is a real search query with thousands of searches. Technically, it is easier than scraping because you work with a file the user downloads from Takeout themselves. Monetization could be a one-time payment for a beautiful PDF export ($5–9) or a subscription for travelers.

Want to go deeper and check whether there is a paying audience and how exactly this should be built?

------------

3rd screenshot

TRANSLATION:

Now we have the full picture.

What already exists:

takeout-tools.com — the strongest existing player, paid, focused on geocoding and exports to GPX/KML/CSV. Built mostly for technical users and GPS devices.
exportgooglemaps.com — free and simpler, but still focused on technical export formats.

What does NOT exist — and this is your niche:

Nobody is building a human-friendly beautiful output for non-technical users. Travelers, expats, people who saved 200 places in Berlin — they do not want a GPX file. They want:

A beautiful PDF travel guide like “My Berlin” with maps, photos, and addresses
A shareable page they can send to friends
A printable list before a trip

How it works technically:

The user downloads a ZIP from Google Takeout (one time, takes 2 minutes), uploads it to your website, and gets a beautiful PDF. No scraping, no API auth headaches, no login problems. Photos can be fetched through the Google Places API using coordinates, which is legal and relatively cheap.

Monetization: one-time payment of $5–9 for PDF generation. Or freemium: basic export for free, beautiful PDF with photos as a paid feature.

SEO: “export google maps saved places”, “google maps saved places PDF”, “google maps list to PDF” are all real search queries. The fact that takeout-tools already ranks for them proves there is traffic.

This is probably the strongest idea from everything we explored today. Want to break down what the MVP should look like and what to build first?