fastwrite.io is an edtech SaaS company building AI-powered writing tools for students. Its platform assists with drafting, editing, and improving academic texts, helping users produce higher-quality work more efficiently.

Profitable, bootstrapped dynamic QR SaaS with $118K TTM revenue and 30% YoY growth. 38,492 customers use it to edit QR codes after printing, changing links or campaigns anytime with no reprints. Built-in analytics track scan location, time, and device, turning every printed code into a measurable marketing channel. Setup takes minutes, with no design or dev skills needed. Ready for a new owner to scale through team plans, upsells, and paid acquisition.

EmailEngine is a self-hosted email API. It connects to any email account over IMAP/SMTP, the Gmail API or Microsoft Graph and exposes all of them through one REST API, with real-time webhooks for new, changed and deleted messages, bounces and sent mail. Developers use it to sync their users' mailboxes into their own product and send email on the users' behalf, without writing IMAP, MIME or OAuth2 code themselves. Built by Postal Systems, the team behind Nodemailer.

PressWhizz is an online link-building marketplace where you can buy or sell links.