Khoa Nguyen

Readima simulates many reading techniques such as Meta Guiding, or RSVP to help you read faster with high comprehension.

Inspect HTTP headers, security posture, SSL transport hints, and server technology for the active tab.

Essential developer utilities in your browser toolbar. JSON, Base64, JWT, hashes, timestamps, regex, colors, diff and more.

Monitor website uptime and response times from your browser. Get instant alerts when sites go down.

Resize, compress, and convert images and PDFs directly in your browser. Free file tools by 1FileTool.

100+ ready-to-use regex patterns for email, phone, URL, IP, date validation. One-click copy with live tester.

Save, tag, search, and export AI conversations from ChatGPT and Claude. Conversations are stored locally in your browser.

Instant DNS lookup for any domain. View A, MX, TXT, NS records, check propagation, and inspect WHOIS data.

Test REST APIs from your browser toolbar. GET, POST, PUT, DELETE with headers, auth, and JSON body. Save requests, copy as cURL.