Dev tools · alternatives · 2026
24 alternatives to Mock Fill
I got tired of typing the same names, emails, and phone numbers again and again while building/testing forms — usually ending up with gibberish. So I built MockFill, a Chrome extension that auto-detects input fields and lets you autofill realistic mock data in one click (single field or entire form). It’s free, works locally, and doesn’t collect any data. Would love feedback from the HN community
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Fake Filler▲137Chrome & Firefox add-on to fill input fields with dummy data
2017 · chromewebstore.google.com · its alternatives →
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I built a browser extension called FakerFill to help developers and QA testers test web forms faster. It automatically detects input fields and fills them with realistic fake data (names, emails, addresses, etc.). The extension focuses on simplicity — there’s no data collection, and everything runs locally in the browser. You can also create and reuse custom templates, choosing which fields to fill and how they’re populated. Right now, it’s available for Chrome, Edge, and Firefox. I’d love to get feedback from other developers — both on usability and ideas for future improvements.
Oct 2025 · fakerfill.com · its alternatives →
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FillApp▲14I built a free Chrome extension called FillApp. It lets you fill web forms just by writing plain text like: “Ship it from @NorthDelivery to @WestflowLimited” It parses the form automatically and fills it with the right data, including tricky fields like dates, multiselects, etc. You can also save and reuse snippets across different forms. It’s completely free and works with most modern web forms. Would love to hear what you think.
2025 · fillapp.ai · its alternatives →
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WebFill▲24Automate form filling, emails, and MCQs with AI precision.
2024 · webfill.co · its alternatives →
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Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP(S), on Windows, Linux & Mac.
2019 · httptoolkit.tech · its alternatives →
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Hurl, run and test HTTP requests with plain text and curl. Hurl can run fast automated integration tests.
2021 · hurl.dev · its alternatives →
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2019 · mockit.netlify.com · its alternatives →
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Save and auto-fill forms on repeat visits, easily and secure
2024 · easyautofill.com · its alternatives →
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FillMate▲12One-click, context-aware AI autofill for any form
2025 · fillmate.info · its alternatives →
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FillWise▲13Fill web forms with AI in one click using Chrome extension
2025 · fillwise.ai · its alternatives →
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SupaFill▲5Autofill that understands context
Jan 2026 · chromewebstore.google.com · its alternatives →
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Fill any form with realistic fake data
Sep 2026 · mockfiller.com · its alternatives →
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Fillsnap▲3Autofill that finishes the form, not just your email
May 2026 · fillsnap.com · its alternatives →
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SmartFill.ai▲14Autofill web forms using AI and your own knowledge base.
2025 · smartfill.ai · its alternatives →
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Form Autofill & Realistic Data With AI
May 2026 · aifakefiller.xyz · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →