Best Products Built with JavaScript (2026)
36 JavaScript products, ranked by community upvotes.
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CodeBurn
Local, free CLI to track AI coding token usage and cost across tools and agents
UserWants
One-line feedback widget that captures screenshots, console errors and browser context.
butterfly css
Attribute-based CSS framework for responsive, animated websites via CDN.
Pulse
Privacy-first, cookie-free web analytics — real-time insights without tracking.
Rune Codes
A browser-first operating system for builders: apps, learning, hub, and careers.
Flamio
Record user sessions and convert behavior into AI-generated UX insights.
CropGuide
Client-side image cropping, compression and validation before upload.
Simple Virtual Tour
Create unlimited 360° virtual tours — self-hosted or cloud, one‑time purchase available.
Controller Tester Online
Browser-based gamepad diagnostics with drift, deadzone, vibration tests and exportable reports.
STRICH Barcode Scanning SDK
JavaScript SDK for fast, real-time barcode & QR scanning in web apps
Calculators Solutions
Free responsive online calculator for basic arithmetic with history and exports
Blisache
Passkeys-as-a-service: passwordless auth with WebAuthn and biometric support
FlowPick
Privacy-first browser extension to detect and download HLS/DASH, video, audio & images.
VPN Leak Test
Instantly check for IP, DNS, WebRTC, and IPv6 leaks—one-click VPN test.
PdfCompare
Compare PDFs locally in-browser with 100% client-side privacy
NoteBoard
All your user feedback in one tiny embeddable widget
Cicada
Minimal circular progress/percentage UI demo built with HTML/CSS/JS
Adacertify
One-line AI that makes websites ADA-compliant in under 60 seconds.
neo Rename
AI-powered batch media renamer for WordPress to improve image SEO using your own AI API.
Edge Shield
The Lightweight CAPTCHA Alternative
Testuj.ovh
Szybki test przycisków, analogów i wibracji oraz certyfikat sprawności online
OverflowGuard
Prevent layout breakage by designing around content, not fixed breakpoints.
Read in Romaji
Adds romaji readings to Japanese webpages locally in your browser.
midi editor
Browser MIDI editor: piano roll, tempo/time signature, SoundFont, WAV/MP3 export