BootSignal

Drop-in services,
in one line

One <script> tag adds widgets like comments and upvotes to any site, sign-in, storage, and i18n included. Subscribe per site to just the widgets you use.

Start free See Pricing

Just three steps

No install, no server, no user database. Paste one line and sign-in, storage, and i18n come with it.

1

Pick a widget

Choose what your site needs, comments, upvotes, ratings, and more.

2

Paste one line

Add one <script> line and a mount tag to your page.

3

Done

It runs right there, with no install and no server.

<!-- anywhere on your page -->
<script src="https://bootsignal.com/bootsignal.js"
        data-site-id="YOUR_SITE_ID" defer></script>
<div data-bootsignal="comments"></div>
25drop-in widgets
0lines of host code
5languages built in
99.9%uptime

In use across the mr.latte family of services

Mr. LatteDoYouBoxGameSnapshotsHizineInverseOneStartupXOTypditOut of Sandbox

Works anywhere you can paste one line of script

WordPressTistoryCafe24ImwebShopifyWixSquarespaceWebflowGhostBlogger

Just added

The newest widgets and tools in the catalog.

CSV to JSON ConverterConvert CSV to JSON and back in your browser, quoted commas kept intact, free, no sign-in.Split-Flap BoardAn airport-style split-flap board for any page, flip through headlines or announce a launch in one line.Contrast CheckerCheck WCAG color contrast between text and background, see AA/AAA pass or fail live, free, no sign-in.OG Image APIOne URL renders your social preview card, drop it in og:image and every page gets a designed share image.

Widgets

Embed widgets you add with one script tag, subscribe per site to just the ones you use

Comments Threaded comments with shared sign-in, storage, and i18n. Upvote One-tap upvotes, one per signed-in user, with a live count. Reactions Multi-emoji reactions, one per signed-in user, with live counts. Ratings & Reviews 1–5 star ratings with optional reviews and a live average. Polls Single-choice polls, one vote per signed-in user, live results. Guestbook A public message wall, visitors leave a note, with shared sign-in.
More →

Free tools

Free tools that run right in your browser, no sign-in

Pomodoro Timer A free online Pomodoro timer, focus and break cycles with a big countdown, no sign-in. Focus Sounds A free ambient sound mixer for focus and studying, white noise, rain, ocean, and more, synthesized live, no sign-in. Stopwatch A free online stopwatch that counts up with laps, time your study, work, or reps, no sign-in. Study Checklist A free study checklist for your daily to-do list, check tasks off and track progress, no sign-in. Quote Cards A free random quote generator with inspiring quotes from real people, shuffle, copy, and share, no sign-in. DNS Lookup Look up a domain's DNS records (A, AAAA, MX, TXT, NS, CNAME) right in your browser.
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Add only what your site needs

Browse 25 widgets and 29 free no-login tools in one place, drop in just what you need, one line each.

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