Fill forms with data you control — saved presets, per-field rules, your own CSV/Excel test data row by row. Built for QA & devs.
Users
205
−29 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
6
0 in 30 days
Store rank
#63K
#53K among extensions
Version
1.6.0
updated 27 Sep 2026
Users
monthly, 15 months
Latest, 15 Oct 2026:205 usersMove the mouse over the chart for any month
Ratings count
monthly, 15 months
Latest, 15 Oct 2026:6 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 Fillr - Form Filler & Test Data Manager: AutoFill With Data You Control
Fillr is a form filler and test data manager for Chrome — for when it matters what goes into every field. Save any form as a preset with a rule per field, fill it from your own CSV or Excel rows, and manage all your test data in one place. Realistic generated data (110+ types, 60+ languages) is built in — but you decide where it goes.
Anyone can spray random values into a page. Fillr is for when the data has to be right.
🎯 EVERY FIELD, YOUR RULES
✓ Capture any form once and save it as a reusable preset
✓ Set a rule per field: Generate, Fixed value, Blank, Skip, or Dataset column
✓ Presets auto-match pages by URL pattern — the right preset surfaces the moment you land on the page (with a picker when several match)
✓ Preview the fill before you run it
✓ Unlimited presets, free
📊 FILL FORMS FROM YOUR OWN DATA (Pro)
✓ Link a dataset to a preset, map columns to fields, and fill row by row — sequential with a "row 3 of 20" readout, or random
✓ Run 50 test cases through the same checkout without typing a single value
✓ Your edge cases, your real records, your regression rows — not random noise
🧪 TEST DATA THAT BREAKS THINGS (Pro)
✓ Boundary values: empty, one character, exactly at the limit, one over
✓ Malformed input and tricky characters — emoji, accents, right-to-left text
✓ Correctly structured values: card numbers that pass the checksum, valid IBANs and ZIP codes
✓ Persona fill: one consistent made-up person across every page of a multi-step signup
🗂️ A REAL TEST DATA MANAGER
✓ Import CSV, Excel or JSON — or generate sheets of realistic dummy data
✓ Edit rows in a spreadsheet grid, organize with tags
✓ Export any dataset to CSV, Excel or JSON
⚡ INSTANT FILL, WHEN YOU JUST NEED VALUES
One click auto-fills every field with realistic fake data — names, emails, addresses, phones, dates and more. Zero setup, works on any
site, one-click Clear when you're done.
🌍 60+ LANGUAGES (Pro — English is free)
Generate locale-accurate names, addresses and phone numbers in French, German, Japanese, Arabic and dozens more for international testing.
🖱️ POINT-AND-CLICK, 100% NO-CODE
A side panel plus a draggable floating bar on the page. Fill, clear, capture, switch presets — no scripts, no selectors, no JSON to edit.
👥 WHO IT'S FOR
QA testers, developers, product managers, support and ops teams, freelancers testing client sites — anyone whose forms need the right data,
not just any data.
💎 FREE VS PRO
Free forever: unlimited presets, ALL data generators, English locale, 3 datasets of 50 rows — genuinely useful, no trial clock.
Pro ($6.99/mo or $69/yr): fill forms from your own data, test-data modes, persona fill, generate a dataset from any form, unlimited datasets, all 60+ locales.
Try Pro free for 7 days — no credit card, nothing to cancel.
Everything lives in the companion web dashboard at fillr.app — your presets and datasets follow you across devices.
Stop typing test data by hand. Add Fillr to Chrome and take control of your next fill.