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Show HN: Airtight – single-file portfolio tracker, zero servers, works offline

airtight.sell.app

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Show HN: Airtight – single-file portfolio tracker, zero servers, works offline

#1

Post by AirTight » Sat, Aug 29, 2026, 7:38 AM UTC

track your portfolio from CSV exports, nothing leaves your browser

Show HN: Airtight – single-file portfolio tracker, zero servers, works offline
airtight.sell.app

Re: Show HN: Airtight – single-file portfolio tracker, zero servers, works offline

#2

Post by [deleted] » Sat, Aug 29, 2026, 7:40 AM UTC

[deleted]

Re: Show HN: Airtight – single-file portfolio tracker, zero servers, works offline

#3

Post by AirTight » Sat, Aug 29, 2026, 8:02 AM UTC

[flagged]

Re: Show HN: Airtight – single-file portfolio tracker, zero servers, works offline

#4

Post by jacquesmouton » Wed, Sep 02, 2026, 8:15 AM UTC

I looked at your website and it seems you are collecting email addresses, is this mandatory? Do you have an app?

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