Foreign SaaS JP-Readiness Index · 13 products scored · by glovrex · 2026

Is your SaaS ready for the Japanese market?

13 foreign SaaS products scored by a Tokyo-native builder against the five signals Japanese buyers actually check before purchasing. Verified against live sites and GitHub — not a template. The same four gaps appear in almost every product: English-only funnel, no 特商法 trust page, USD-only billing, and zero Japanese search presence.

Want your product mapped? Reply to hello@glovrex.com with your URL — free maps are made periodically. The full audit is $1,500 at glovrex.com.

Scores at a glance — sorted by score (low to high): Documenso 16 · NocoDB 18 · Trigger.dev 19 · Twenty CRM 20 · n8n 20 · Hoppscotch 21 · Penpot 22 · Cal.com 23 · Plane 24 · Umami 25 · Rallly 26 · Chatwoot 28 · Refine 17
Penpot
Open-source Figma alternative · Madrid
22 / 100
Not ready

Community volunteer offered JP translation (#5128) — funnel doesn't capture it. English-only marketing, no 特商法, USD pricing.

NocoDB
Open-source Airtable alternative · UK
18 / 100
Not ready

Community JP README exists. IME Enter bug (#10394) breaks grid data entry. English-only site, no 特商法, USD pricing.

Chatwoot
Open-source Intercom alternative · YC W21
28 / 100
Not ready

App UI is in Japanese (ja.yml) — but funnel, 特商法, and JP search presence aren't. IME bug in AI fields (#13765).

n8n
Workflow automation · Berlin · OSS core
20 / 100
Not ready

Two separate community JP UI forks ship as Docker images. Official product is English-only. EUR pricing, no 特商法.

Umami
Privacy-first GA alternative · OSS
25 / 100
Not ready

Community JP translation requested (#297). Strong fit for Japan's privacy context — but funnel, 特商法, and JP search are missing.

Documenso
Open-source DocuSign alternative
16 / 100
Not ready

Has FR/ES/DE locale pages — not JA, despite issue #1904. No 特商法 (critical for e-signature). Japan's hanko transition = huge untapped market.

Trigger.dev
Open-source background jobs · Berlin
19 / 100
Not ready

7 Zenn articles explain how to use it — JP community pull is real. No ja locale, no 特商法, USD-only. Community submitted a JP doc PR before the team did.

Hoppscotch
Open-source Postman alternative · 79k stars
21 / 100
Not ready

Japanese locale is 45% complete (944 of 2,078 strings). Half-translated reads worse than English-only. No 特商法, USD pricing, English marketing.

Refine
React enterprise admin framework · open-core
17 / 100
Not ready

Coconala (Japan's largest freelance platform) rebuilt their admin on Refine — published on Zenn. No JP locale, no 特商法, USD pricing.

Twenty CRM
Open-source Salesforce alternative · $9/user
20 / 100
Not ready

twenty.com has /fr and /es marketing pages — /ja returns 404. A Unicode bug rendered Japanese text as raw escape sequences (#13665). No 特商法.

Cal.com
Open-source Calendly alternative · 45k stars
23 / 100
Not ready

Product has full ja locale (4,635 keys, 391 KB) — but cal.com/ja is a 404. No Japanese marketing page, no 特商法, USD pricing despite real JP translation investment.

Plane
Open-source Jira alternative · Pro $6/user
24 / 100
Not ready

27 Japanese locale files exist — but issue #9082 (open) confirms remaining hardcoded English surfaces. English-only marketing, no 特商法, USD pricing.

Rallly
Open-source group scheduling · Doodle alt
26 / 100
Not ready

Japanese locale shipped October 2024 (issue #1401). Product speaks Japanese — marketing does not. No 特商法, USD pricing, invisible vs. domestic tools like Chouseisan.

What the score measures

Each score is 0–100 across five verified dimensions (each 0–20): (1) Japanese marketing funnel, (2) Legal/trust — 特商法 disclosure, (3) JPY billing and payment, (4) JP search visibility, (5) Product locale / IME / UX. Verified against live sites and GitHub repos on the date shown on each page. Not a template — each product is checked individually.

About these maps

These are free public-good gap maps made by glovrex — a Japan-readiness audit service run by a Tokyo-native builder. The goal is to be genuinely useful: not a generic checklist, but a product-specific native view of what's actually blocking Japanese buyers. Each verified gap links to the evidence (live URL, GitHub issue, or legal page check). If anything here is wrong or you want your product removed: hello@glovrex.com.