Dev tools · alternatives · 2026
24 alternatives to Fast
World's fastest login and checkout
Fast is a login and checkout solution that enables one-click authentication on any website using email verification. The service works for all users without requiring a Fast account, and developers can integrate it via… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Fast launched in 2019; newer entries below may have overtaken it.
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It's WordPress, without passwords
2019 · wordpress.org · its alternatives →
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The browser extension to auto-fill passwords instantly
2024 · chromewebstore.google.com · its alternatives →
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Make your site’s pages instant in 1 minute and improve your conversion rate by 1%.
2019 · instant.page · its alternatives →
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Bolt One Click▲142The simplest and fastest checkout experience for shoppers.
2021 · bolt.com · its alternatives →
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Instant Page▲416Make your site’s pages instant in 1 minute ⚡
2019 · instant.page · its alternatives →
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Which Login?▲286Never forget how you signed into a website anymore
2019 · whichlogin.com · its alternatives →
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Fast and easy password-less authentication
2025 · apps.shopify.com · its alternatives →
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See how fast your internet connection is, now on mobile
2016 · apps.apple.com · its alternatives →
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Rapid 2FA▲91A painless way to add two-factor authentication to your site
2017 · rapid2fa.com · its alternatives →
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Slow▲164Slow down your spending with the world’s slowest checkout 🛒
2020 · slow.sale · its alternatives →
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Fastest way to add passwordless login to your app for free
2020 · workos.com · 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 →