Comparison
Glossa vs Crowdin: a translation workflow your agents can run
Crowdin is a mature, full-featured localization platform built around human translators. Glossa is newer and narrower: it assumes AI does the translating and agents do most of the reviewing. Here is how they differ, with sources for every claim about Crowdin.
Side by side
| Topic | Glossa | Crowdin |
|---|---|---|
| Primary workflow | AI translates every string; people and agents review what needs judgment in a task queue. | An online editor for human translators and proofreaders, with machine and AI translation available. source |
| AI translation | Claude Opus, prompted with each string's context, your glossary and your per-language rules. | Connect AI providers including OpenAI, Google Gemini, Anthropic, Azure OpenAI and Mistral, with routing between them. source |
| Duplicate strings | Identical source text across every file and project shares one unit and one translation per language; split or merge as an op. | Translation memory suggests and reuses earlier translations. source |
| API coverage | Every dashboard action is an op over REST, MCP and the CLI, generated from one registry. | A REST API, SDKs and webhooks, plus a CLI that manages files, strings, glossaries, translation memories and tasks. source |
| Agent tooling | A hosted MCP server with one tool per op, a review queue designed for claim/decide/resolve, llms.txt and agents.md. | An Agent Skill and a Claude Code plugin for the Crowdin CLI. source |
| Quality over time | Per-language audits answer a question, file fixes, and propose glossary terms and rules that apply to future translations. | QA checks and AI checks that flag suspicious content. source |
| File formats | 12 built in; unknown formats are learned into reusable templates. | 50 supported formats, including document, subtitle and graphic formats, with more through apps. source |
| Integrations | Claude Code, Codex, Cursor, any MCP client, the CLI in CI such as GitHub Actions. | 700+ integrations, including GitHub, GitLab, Bitbucket and Figma. source |
| Human translators | Invite reviewers to your workspace; no vendor marketplace. | Invite community translators, bring your own, or find vendors in the Crowdin Store. source |
| In-context and design tools | Not offered. | In-context translation and design-tool integrations. source |
| Compliance | Beta. Ask us about your requirements. | States ISO 27001, GDPR and HIPAA compliance. source |
| Pricing | Free for one app; Pro $49 and Team $199 a month, priced by AI translations, not seats. | Paid plans; see Crowdin's pricing page. |
Crowdin details checked on 2026-10-15 from Crowdin's public pages. Corrections welcome at jonathan@welcome.meterapp.co.
When Crowdin is the better choice
- You work with professional translation vendors or a volunteer community and need their workflows.
- You localize documents, subtitles or design files, not only app strings.
- You rely on a specific integration from its catalog, in-context editing, or formal compliance attestations today.
When Glossa is the better choice
- You want machine translation you can ship, with glossary, rules and placeholder checks applied to every string.
- You ship several apps (iOS, Android, web) that repeat the same strings and want one translation for all of them.
- You want coding agents to run localization end to end:
push_file,claim_tasks,resolve_task,run_audit, all over MCP. - You want quality to compound: audit findings become rules, so the same mistake does not come back.
Moving over is file-based: export your source and translation files, push them with the CLI, and existing translations import as imported, which AI never overwrites. See the quickstart and the supported formats.
Try it next to Crowdin
Push one file you already translate in Crowdin and compare the output. Free for one app.