Fill any open form with one coherent fake record — fields agree, required filled, real options picked. On-device. Great for CRM.
Users
10
−3 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#193K
#162K among extensions
Version
0.5.2
updated 14 Jul 2026
Users
monthly, 4 months
Latest, 16 Oct 2026:10 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
Latest, 16 Oct 2026:1 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 FillFast — Realistic test data for any form, one keystroke
FillFast fills the open form with ONE believable record in a single keystroke — name, email,
phone, address, and salutation all derived from the same person, so nothing contradicts.
Built for the people who fill the same form fifty times a day: implementers, QA engineers,
demo builders, and sales ops. Great for CRM forms (Salesforce, Dynamics, HubSpot and the like),
and works on ordinary web forms too.
WHY IT'S DIFFERENT
• One coherent record — name → email → salutation → phone → address all derive from one person.
Never a required field left blank, never a value that contradicts another.
• Drives the controls your app actually uses — dropdowns, comboboxes, and date pickers pick from
the form's real options. It uses native setters + input/change events, so the page's own Save
passes cleanly (no "looks filled but won't submit").
• On-device. Records are generated locally, in memory, when you press the key. Filling a form
makes no network request and nothing leaves the page.
HOW IT WORKS
1. Open the form you want to test.
2. Press Alt+Shift+F (rebind it to whatever fits your hands) or click "Fill this form".
3. FillFast generates one internally-consistent fake record and types it into the fields.
4. Review and save — you're always in control of what gets submitted.
PRIVACY
No account, no analytics, no trackers, no remote code. FillFast never reads the data already in
your CRM and never sends form data anywhere. The only thing it stores is your chosen keyboard
shortcut. Full policy: https://fillfast.work/privacy
PRICING
FillFast is free. FillFast Pro ($9/mo, sold through Polar) supports development and will add
AI-assisted features as they ship — today Free and Pro fill identically.
Use FillFast only on systems you're authorised to enter test data into, with fake data, and
always review a form before you save it.
CHANGELOG
- [0.5.2] — 2026-07-13: Progressive "create" forms now fill completely, not just the email field; international phone inputs come out as a correct +84 … number.
- [0.5.1] — 2026-07-05: Fills forms inside plain slide-in drawers, not just standard dialogs — no more accidentally typing into the page's search box.
- [0.5.0] — 2026-06-30: "Form didn't fill? Report it →" link in the popup — opt-in, sends only the page URL and your note, never your form data.
- [0.4.5] — 2026-06-25: Stop a fill (toast/Esc); Google-Places address fields fill; search dropdowns
fall back to first option.
- [0.4.4] — 2026-06-24: Single keyboard shortcut, customizable in the popup.
- [0.4.3] — 2026-06-24: Pipedrive support; better labels, dates, and dropdowns.
- [0.4.2] — 2026-06-24: Vietnamese form support; smarter field detection.