
JSON Formatter & Validator
DevTools Advanced
JSONFormatter.org
FreeFormatter
JSON Editor Online
SmallDevTools
TheDevTools
FOSS tools for developers
Stair Calculators
StairDesigner
Parametric 3D staircase design with IFC4 and dimensioned DXF export. Free and browser-based. Compliance remains the designer's responsibility.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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SS
StairSmith
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| Website | developertools.tech | jakewhitearchitecture.com |
| Pricing | — | |
| Company | — | Startup from the United Kingdom · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of DeveloperTools.Tech yet.
StairSmith is a browser-based parametric staircase design tool requiring no login or installation. It supports timber staircase designs in straight layouts, ninety-degree single winders, and one-hundred-eighty-degree double winders. Users can adjust parameters like rise, going, and width while...
What each product offers, as listed by its team.

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93 stair-only calculators. No logins, no unrelated tools, no black-box math — every formula shows its work and cites the exact code section behind it.
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Professional Staircase Design Software
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Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.
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