Simple Unmark
Clean AI text and reduce watermark signals
AI & Machine Learning·Productivity
About
Simple Unmark is a web application for cleaning AI-generated text before it is reused or published. It removes hidden Unicode controls and formatting artifacts that can travel with copied model output, then rewrites syntax and phrasing to reduce probabilistic watermark signals. The cleaner is designed to preserve facts, numbers, proper nouns, tone, and intent while making the result easier to review and work with. Visitors can try three free cleans of up to 100 words without creating an account. Registered users can process documents of up to 5,000 words and purchase optional one-time credit packs when they need more capacity. There are no subscriptions. The workflow is browser-based: paste text, run the cleaner, inspect the output, and copy the cleaned version. It is useful for writers, editors, students, researchers, freelancers, and teams that want to remove invisible text artifacts and normalize AI-assisted drafts without changing the underlying meaning.
Ready to launch?
Submit your product and get discovered by builders and creators worldwide.
Launch Now
FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
About 70% of the world population do not have that ability and they need to be approached because you know all of the fitness industry is based on that pretty much that very healthy concept of yeah you get you need to get more responsible you need to get moving.
70% of People Lack Intrinsic Fitness Motivation — Build for Them, Not the 30%
Anton observed that the entire fitness industry — from gym memberships to wellness apps — is built around intrinsic motivation: you want to be healthy, so you act accordingly. But 70% of people don't have that internal drive. Sweatcoin was designed for the majority, not the minority, using external incentives (literal rewards) to substitute for intrinsic drive. This insight shapes which product you build: if your target user lacks the intrinsic motivation your category assumes, you need to engineer an external trigger system.
I created a completely fake demo for this product because the product wasn't there yet and put it on this landing page. I think it's the most low-effort way to validate the idea because I wanted to find out if people would actually pay for this.
Fake demo landing page validates buyer intent before writing any code
Joseph built a minimal landing page under an existing warm domain before writing a single line of code. He used an AI-generated fake demo from ElevenLabs and a Calendly link as the only call to action, letting organic search traffic drive real buyer conversations.
There's a play for whatever you're stuck on.
Read all 2722 playbooks