MermaidViewer
Free Mermaid editor & viewer with an AI diagram generator
Developer Tools·AI & Machine Learning
What is MermaidViewer?
MermaidViewer is a fast, free Mermaid diagram editor that runs in your browser. Paste code for an instant live preview, or describe a diagram in plain English and let AI write the Mermaid for you. It supports all 22+ diagram types, fixes syntax errors in one click, and exports PNG with no sign-up. A focused Mermaid live editor with the extras other viewers skip: AI that generates, edits, fixes and explains diagrams, 30+ templates, autocomplete, error messages that point to the exact line, share links and live iframe embeds. Free to use without an account. Paid Starter and Pro plans add cloud saving, more AI and SVG/PDF export.
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FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
We came up across the use case of sleep podcast for sleep we were seeing lots of people using our app at night for sleep and it turns out podcasts can have a hypnotic effect.
Mine your own app's usage data to discover the next market — behavioral signals beat brainstorming
Podcast App's data revealed that a significant cohort was using the app as a sleep aid — listening at night in a specific pattern. Siniawski didn't go looking for the next market; behavioral signals in the existing product pointed to it. This is a replicable discovery method: segment your retention and usage patterns by time-of-day, use case, and audience cohort to find unmet jobs-to-be-done hiding in your data.
The hardest part is taking a loss in an experiment is not intuitive if you only always go by positive revenue metrics you will burn yourself to the ground.
Taking a Revenue Loss in an Experiment Is Not Intuitive — But It Is Necessary
Jim's operating principle at Duolingo: accept that some tests will show negative revenue impact and ship them anyway if they serve the 100-year version of the company. Over-optimising purely for short-term revenue metrics compounds the premium trap — it feels good each quarter until the brand is hollowed out.
There's a play for whatever you're stuck on.
Read all 2722 playbooks