# inferens.dev > Open-source tools for the gaps SaaS platforms leave behind. Each one targets a problem too specific for the platform to solve — and too painful to keep working around. Built with 15 years inside Mambu and Mendix. ## About **Jos Huiting** — principal engineer, Utrecht, Netherlands. Built Mambu Functions from scratch. Drove platform extensibility across Mendix's multi-cloud infrastructure across 200+ enterprise environments. Also available for advisory, architecture reviews, and embedded engineering. Contact: hello@inferens.dev | LinkedIn: https://www.linkedin.com/in/joshuiting/ ## Pages - [Home](https://inferens.dev/) — Products overview and contact (~600 tokens) - [Translation Editor](https://inferens.dev/products/translation-editor) — Browser-based Chargebee translation tool: features, how-it-works, CTA (~1200 tokens) ## Products ### Translation Editor - **Live**: https://tools.inferens.dev/translation-editor.html - **GitHub**: https://github.com/inferens-dev/translation-editor - **Type**: Open-source, free, single HTML file, zero dependencies, browser-based - **Purpose**: Replace Excel for Chargebee language pack translation workflows. No signup, no server — runs entirely in the browser. - **For**: Localization leads, RevOps, and devs maintaining multi-language Chargebee billing UIs - **Features**: Side-by-side editing, AI bulk translation (Claude API), smart validation (duplicate keys, placeholder mismatches, length checks), deduplication, progress tracking (Mandatory/Optional/Internal tiers), privacy-first (all in-browser, no server, no uploads) - **Supports**: 40+ languages, dark mode, localStorage persistence