TongBao VPN

Free Online Toolbox

All Free

Free, secure, no-registration-required online tools — IP lookup, DNS leak test, User Agent detection, Base64 encode/decode, MD5 hash generator, and image format converter, all in one place

IP Address Lookup

Instantly check your public IP address, geolocation, ISP info, with proxy/VPN detection and WebRTC leak testing

DNS Leak Test

Multi-source DNS leak detection to verify your VPN security. Quickly diagnose if your real IP is exposed through DNS queries

WebRTC Leak Test

Deep scan your browser for WebRTC IP leaks, distinguish local IPs from public IPs, and assess your VPN privacy protection level

Global Ping Test

Test network latency to global server nodes, visualize connection speeds across regions, and optimize your VPN node selection

Password Generator

Client-side secure password generator with custom length and character types. All passwords generated locally, never uploaded to any server

User Agent Detection

Parse your browser User-Agent string online — view browser type, operating system, device model, and screen resolution

Base64 Encode/Decode

Free online Base64 encoder and decoder for quick text conversion. All processing done locally to protect your privacy

MD5 Hash Generator

Generate MD5 hash values for text and files online. Supports 32-bit/16-bit formats, computed locally with no upload required

Image Format Converter

Convert between JPG, PNG, and WebP formats with batch processing. Local conversion keeps your images private and secure

Learn more about TongBao VPN, please visit TongBao VPN Official Website