Description
API Key Manager | HTML5 Management Tool is a secure, client-side vault for developers, freelancers and teams who juggle dozens of API keys across projects. Built with pure HTML, CSS and vanilla JavaScript, it runs entirely in the browser with no server, database or backend setup — just open the file and start organizing your keys in one clean dashboard.
Every key stays on your own device. Values are stored in your browser’s localStorage and are never sent over a network unless you choose to export them yourself. That makes this HTML5 tool a practical choice for anyone who wants strong, offline-first key management without accounts, subscriptions or internet dependency after the first load.
Key management made simple
Add, edit and delete keys with names, values, categories, vaults, notes, tags and expiry dates. Search instantly by keyword, filter by category or vault, and sort by date or name. Bulk actions let you delete several keys at once, while a built-in strength meter rates each key as Weak, Fair, Good or Strong. Key values stay masked by default and auto-hide after a configurable delay, and overdue expiry warnings help you rotate credentials before they cause problems.
Security built in, not bolted on
Protect your whole vault with AES-256-GCM encryption using a master password, powered by the browser’s native Web Crypto API with PBKDF2 key derivation. A full-page PIN or password lock screen appears on every load, and a short lockout after five failed unlock attempts helps block brute-force attempts. An activity log tracks your last 50 actions — adds, copies, deletes and exports — for easy auditing.
Organize by project with vaults and categories
Sort keys into eight built-in categories — Payment, Cloud, Social Media, Database, Analytics, AI/ML, Messaging and Other — or create, rename and delete your own. Color-coded vaults keep client and project keys separated, so you can switch contexts without mixing credentials.
Export, back up and work offline
Back up your full collection as JSON, including vault and category data, or export to CSV for spreadsheets. Import from JSON with Merge or Replace modes to restore or combine libraries. As a progressive web app, the tool installs on desktop or mobile, works fully offline through a service worker, and supports Add to Home Screen on Android and iPhone.
Easy to use anywhere
Enjoy light and dark modes, a fully responsive layout for phones, tablets and desktops, and configurable settings for auto-hide delay, date format, confirm-delete prompts and usage tracking. There is no npm, terminal or build step: upload the files to any static host such as cPanel, Netlify or GitHub Pages, or simply open index.html locally. It works in modern Chrome, Firefox, Edge, Safari and Brave, and PWA installation requires HTTPS.
If you need a fast, private and portable way to store, protect and find your API keys, API Key Manager | HTML5 Management Tool delivers a complete, dependency-free solution in a single browser app.
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