Developer tool for precision-safe math
Stop floating-point bugs before they hit money, science, or production data.
FloatSafe Compare gives backend teams deterministic floating-point comparisons with tuned tolerances, ULP-aware analysis, and generated helper functions you can ship in minutes.
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The costly mistake teams keep shipping
if (balanceDelta === 0.3) { settle(); }
// Fails when delta is 0.30000000000000004
That one line has broken invoice settlement, payout triggers, and scientific thresholds. FloatSafe Compare replaces naive checks with robust comparison semantics tuned to your domain risk.
Problem
Binary floating-point rounding causes false mismatches and threshold errors that cascade into financial misstatements and unstable models.
Solution
Compare numbers using absolute+relative tolerances and ULP checks, visualize drift, and generate hardened code snippets in your target language.
Outcome
Reduce production incidents, eliminate reconciliation noise, and ship precision-sensitive logic with confidence for just $5/month.
Simple pricing for precision-critical teams
$5/mo
One seat. Full compare workspace, visual diagnostics, and code generation.
- Safe comparator with NaN/Infinity and ULP handling
- Precision drift visualizer for cumulative error analysis
- Code generation for 8 backend languages
- Cookie-based paywall unlock after Stripe checkout
FAQ
Why not just use `a === b`?
IEEE-754 binary floating point cannot exactly represent many decimal fractions. Values that should match often differ by tiny binary residue, so strict equality fails in real production paths.
Where does this matter most?
Fintech ledgers, payout reconciliation, simulation models, ML metrics, and analytics pipelines all suffer silent corruption when comparisons ignore tolerance and scale.
What do I get in Pro?
Interactive compare workflows, drift visualization, and copy-ready comparison helpers for TypeScript, Python, Go, Java, C#, Rust, C++, and JavaScript.
How does access work?
Checkout runs through Stripe-hosted Payment Links. After successful payment, a signed cookie unlocks your tool workspace on this domain.