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forthwith /fɔːrθˈwɪθ/
adverb: immediately; without delay.
Public Beta: Lock in Beta Pricing (20% off) through June 30, 2026.
View PricingContinuous localization from your terminal.
Forthwith detects changed strings, translates only what's new, validates placeholders, plurals, and markup, then writes clean localization diffs back to your repo.
Founding Beta Pricing: 20% off through June 30, 2026.
Not just translation. Localization maintenance.
LLMs can translate a string. The hard part is keeping every language in sync as your app changes without breaking resource files.
Scans projects and detects localizable resource files
Discovers new or changed strings and leaves unchanged text alone
Validates and can auto-correct localization-safety issues
Runs from the terminal in Git workflows, including older projects
One repeatable CLI workflow
Run the same commands for the first pass and for every localization update after it.
Initialize
Run Forthwith in your project. It scans the codebase, detects localizable resource files, and learns the file formats it will maintain.
$ forthwith init
Translate
Forthwith compares your source strings, finds new or changed entries, and translates only those updates on your approval.
$ forthwith translate
Review
Validated localization files are written back into your repo. Review the clean Git diff, test it, and commit when ready.
$ git add . && git commit
Works With Your Stack
Use the same terminal workflow across mobile, web, server-rendered, and mixed-stack software projects.
Android
iOS
Flutter
React Native
React
Phoenix
go-i18n
Simple, Transparent Pricing
Pay by words processed. No per-language fees. No hidden costs.
Ongoing
Standard
$49 / mo
$36.75 / mo
100K words / mo included
Overage: $0.65 / 1K $0.49 / 1K
Initial full localization
Launch
$129 / mo
$96.75 / mo
300K words / mo included
Overage: $0.55 / 1K $0.41 / 1K
Founding Beta prices available through June 30, 2026. Excludes taxes.
What to Expect in Beta
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Public Beta customers get discounted pricing and early influence on the roadmap.
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In return, we ask for feedback on bugs, gaps, and workflow friction.
Frequently Asked Questions
Keep localized apps in sync with one command.
Start in Public Beta, keep 20% off while you stay on your plan, and bring ongoing localization into your normal Git workflow.