
AlgoBacktest
Options Backtesting Engine
Portfolio Backtest
Backtrader
ETFreplay.com
GreeksLab
QuantConnect
A backtester built to catch strategies that only work on paper

Tailwind UI
FlowBite
DaisyUI
Preline UI
Ayro UI
Aceternity UI
v0.dev
Beautiful and responsive UI components and templates for React and Vue with Tailwind CSS.
Which is more popular?
Based on our record, Float UI seems to be more popular. It has been mentioned 10 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | honestbacktester.com | floatui.com |
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| Platforms | — | |
| Company | Startup from Ireland | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Most backtests flatter you — great numbers in, great numbers out. Honest Backtest Engine is built to do the opposite: it tests your strategy on data it never saw, models real commission, slippage and borrow, deflates the Sharpe for how many combinations you tried, and Monte-Carlo stress-tests the...
Float UI is a platform that allows users to create modern websites without requiring design knowledge. The platform is open source and free, making it accessible to everyone. It includes a collection of responsive user interface components and website templates with modern designs, making it easy...
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Float UI yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Honest Backtest Engine and Float UI.
Honest Backtest Engine's answer
Most backtesting tools are built to make a strategy look good. Honest Backtest Engine is built to do the opposite — to catch the strategy that only works on paper before you risk real money on it. Every run headlines out-of-sample results, charges real trading costs, deflates the Sharpe ratio for how many parameter combinations you tried, and Monte-Carlo stress-tests the outcome. It ends in a single believability score from 0 to 100, and it shows you the checks your strategy failed, not just the ones it passed. No other tool leads with the red marks.
Honest Backtest Engine's answer
It was built out of a common, painful experience: strategies that backtest beautifully and then quietly lose money live. That gap is almost always caused by overfitting, ignored costs, look-ahead bias, or a single lucky run mistaken for an edge — and most backtesting tools do nothing to catch it. Honest Backtest Engine exists to run those checks automatically and to be honest about the result, even when the honest answer is "this edge probably isn't real."
Honest Backtest Engine's answer
Because it's designed to tell you the truth rather than flatter you. It models real commission, slippage and borrow costs, it's look-ahead-proof, and it produces a tamper-evident signed report anyone can verify without trusting you. It runs entirely on your own machine — your data and strategies never leave your computer. It's a one-time €149 purchase with every future version included, no subscription. And it comes with a guarantee: if it doesn't catch a backtest that was lying to you within 30 days, you get a full refund.
Honest Backtest Engine's answer
Retail and independent algorithmic traders who build and backtest their own strategies — especially anyone who has watched a great-looking backtest lose money in live trading and wants to know whether an edge is real before funding an account. It suits people comfortable with concepts like Sharpe ratio, overfitting and out-of-sample testing, though the reports are written to be readable without a quant background.
Honest Backtest Engine's answer
Python, with pandas and NumPy for the backtesting engine and data handling. Reports and the local interface are rendered as HTML in the browser. Reports are cryptographically signed using Ed25519 so they can be independently verified. It runs as a self-contained local application on Windows, Mac and Linux.
Share your experience with using Honest Backtest Engine and Float UI. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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React developers can quickly create websites and web applications with Float UI, a collection of interactive UI components and elements. A beautiful website can be created with Float UI because it uses pure React,...
Recommendations tracked on public social media and blogs since March 2021.


Tracking Honest Backtest Engine since Jul 2026.
Tailwind by default does not give you any components to work with, except if you use TailwindUI, which is quite expensive. But if you want a free component library, you can use FloatUI. - Source: dev.to / over 2 years ago
Float UI - free web development tool for quickly creating modern, responsive websites with sleek design, even for non-designers. - Source: dev.to / almost 3 years ago
I have used Radix UI a lot, and built a library using it like Float UI and PH clone, and it’s cool tbh. Source: almost 3 years ago
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