randumb — coherent fake data form filler
Form filler with 58 locales and country-coherent identities (Germany→Hans Müller→München→€). Bulk CSV for test DBs. Free.
As of June 2026, randumb — coherent fake data form filler has 2 users in the Developer Tools category.
Usersno change0%
2
2
Ratingno change0%
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— reviews
Reviewsno change0%
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Version
1.0.3
Manifest V3
History
2 snapshotsTracking since May 4, 2026.
Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| May 4, 2026 | — | — | — | 1.0.3 |
| Jun 3, 2026 | — | — | — | 1.0.3 |
| Now | 2 | — | — | 1.0.3 |
Permissions & access
- Permissions
- storagealarmscontextMenusdownloadsactiveTabscripting
- Host access
- <all_urls>
Screenshots
About
randumb is a form-filler for developers, QA engineers, and product
testers. Press Alt+Shift+F (or click the floating "r̸ fill form" badge)
and every fillable field on the page gets a coherent fake identity:
matching first name, last name, email, phone, street, city, postal
code, and currency — all from the same country.
The difference from every other form filler: coherence. Most tools pick
each field independently and produce things like "Germany, John Smith,
Tokyo, $12.50". randumb picks a country first, then draws everything
from that country's dictionary. You get "Deutschland, Hans Müller,
München, €7.423,00" — the kind of data your localization tests expect.
WHAT IT FILLS
• full name / first name / last name / middle name
• email (with realistic provider per country — gmx.de for Germany,
libero.it for Italy, gmail.com for the US, etc.)
• phone with country-correct format
• street / city / region / postal code
• company name / job title
• username / password (passes basic complexity)
• birthdate in a reasonable adult range
• Luhn-valid test credit card numbers (structurally valid, never real
stolen numbers)
• 30+ other field kinds, detected from field name, id, label,
placeholder, and autocomplete attribute
HOW IT DETECTS FIELDS
Every input is scored against a token table with weights for:
• input type (email, tel, password)
• HTML5 autocomplete attribute (given-name, street-address, …)
• name / id / placeholder / label / aria-label tokens
Fields the classifier is confident about get the matching generator;
fields it isn't get a generic string. All fills go through a native-
setter + input/change/blur event dispatch so React/Vue/Angular forms
correctly pick up the change.
LOCALES
Free: 15 locales — US, UK, DE, FR, ES, IT, PT, PL, TR, NL, SE, NO,
DK, FI, JP.
Pro adds 43 more, including Israel, UAE, Saudi Arabia, India, China,
Korea, Indonesia, Vietnam, Thailand, Brazil, Argentina, Mexico, and
31 others. Each locale has its own first-name / last-name dictionary,
currency, phone format, and city list.
PRO — $4.99/mo
• All 58 locales
• Bulk CSV export (up to 1,000 rows per click — great for seeding
test databases)
• Seeded mode: same seed → same output (reproducible fixtures)
• Per-domain presets: signup.acme.com always fills US, dev.myapp.local
always fills DE
• Custom field mappings: force field "user_code" to always fill as
an email, for example
Team ($9/seat) and Enterprise ($49 flat) at voiddo.com/tools/randumb/upgrade.
PRIVACY
randumb writes generated data INTO fields on the page you triggered
it on. It does not read what was there before, does not transmit form
values anywhere, does not inspect pages you didn't invoke it on. The
only outbound request is license validation (only if you've entered a
Pro key), at activation and once per 24h.
Full policy: https://voiddo.com/tools/randumb/privacy/Technical
- Version
- 1.0.3
- Manifest
- V3
- Size
- 125KiB
- Min Chrome
- 110
- Languages
- 1
- Featured
- No
Metadata
- ID
- icmabahlbfcecgnjlilingppfagohcil
- Developer ID
- uc71b977faa88e76ffe193279628a4849
- Developer Email
- [email protected]
- Created
- May 3, 2026
- Last Updated (Store)
- May 3, 2026
- Last Scraped
- Jun 9, 2026
- Website
- voiddo.com
- Support URL
- —
- Privacy Policy
- https://voiddo.com/tools/randumb/privacy/
Data sourced from the Chrome Web Store · last verified Jun 9, 2026.