Free tools · no signup
Honest tools, honest answers.
Kasspian finds the rooms your buyers are already posting in, tells you which ones will let you speak, and writes the reply. These are the same reads, backed by real sources, free to run on your own business or a client's. No email. No fluff. They'll tell you the truth, even when it stings.
Start here
Find your first customers
The actual places your first customers are: named, not “do content marketing.”
Find my customersMore honest reads
AI tools, each one groundedValidate your startup idea before you build it
An honest score on your idea. It'll tell you to kill it if it deserves it.
2/10. Saturated with funded incumbents. No wedge here.
Check whether you can promote in a subreddit
Check the door before you knock. Posting and commenting are different rules.
r/smallbusiness: posting restricted, commenting open.
Work out which marketing channels are worth your time
Where your business should actually show up to win customers, and where to skip. Honest, for your specific business.
Reddit: start here. SEO: later. Paid ads: skip.
Find out why your website loses customers
Paste your site and get the honest gaps costing you customers, and how to fix each.
No pricing anywhere, so visitors can’t tell if there’s a paid tier.
Check whether your idea is already taken
Paste your idea and see the real, funded companies already in your space, each with a source, and whether you've actually got an angle.
Trade Coffee, Bean Box and Atlas already here. No clear wedge.
Get your startup idea roasted
Paste your idea. Get a brutally honest roast you can actually share.
2/10. It’s Uber for dog walking, which is to say it’s Rover.
Quick calculators
11 tools, instant, nothing storedWork out your TAM, SAM and SOM
Size your market in seconds: total, serviceable, and the slice you can realistically win.
Work out how long your runway lasts
Cash on hand, monthly burn, and how long until zero.
Split equity with your cofounder
Rate each founder across five factors and get a defensible split.
Find the assumption most likely to kill your idea
The one thing most likely to sink it, and the fastest way to check it, in two minutes.
Work out your break-even point
Fixed costs, price, variable cost, and the units you need to break even.
Work out your LTV to CAC ratio
Lifetime value vs cost to acquire: the number investors check first.
Estimate what your startup is worth
Annual revenue times a multiple: a rough, honest starting number.
Work out what it costs to start
One-time setup, product, and months of operating: your real launch budget.
Work out your profit margin
Revenue and costs in, your margin and markup out.
Work out what to charge as a freelancer
The income you want plus expenses, divided by the hours you can actually bill.
Work out your dilution before you raise
Pre-money plus the raise gives post-money, and the share you give up.
Want proof it doesn't flatter?
We fed famous startup flops to the same engine, names stripped.