randumb — coherent fake data form filler icon

randumb — coherent fake data form filler

by vøiddo · voiddo.com · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Form filler with 58 locales and country-coherent identities (Germany→Hans Müller→München→€). Bulk CSV for test DBs. Free.

Users
3
0 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#333K
#260K among extensions
Version
1.0.3
updated 3 May 2026

Users

monthly, 5 months
024May 2026Aug 2026Oct 2026
Latest, 15 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months
001May 2026Aug 2026Oct 2026
Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About randumb — coherent fake data form filler

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/

Growth

WindowUsersChangeRatingsRating
7 days+1+50.0%00.00
30 days0+0.0%00.00

Version history

1 versions recorded
1.0.33 May 2026

Details

Category
Developer Tools
First seen
3 May 2026
Size
125 KB
Languages
en-US
Pricing
Free
Privacy policy
voiddo.com
Extension ID
icmabahlbfcecgnjlilingppfagohcil

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
storagealarmscontextMenusdownloadsactiveTabscripting
Site access
<all_urls>
Can read and change data on every website you visit.

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