帮助你更高效工作的工具

Validate and preview HTML online.

Validate and format JSON online.

Validate and format XML online.

Validate and format PHP online.

Test regex matches and replacements.

Audit a website for on-page SEO issues and fixes.

Estimate a page ranking score and prioritize ranking fixes.

Check keyword placement and density for a website page.

Compare text, code, and scripts with side-by-side line diffs.

Beautify code and markup for multiple languages.

Send HTTP requests and inspect API responses.

Encode and decode Base64 text.

Encode and decode URL-safe text.

Generate MD5 hashes from text or files.

Generate SHA256 hashes from text or files.

Generate and verify BCrypt password hashes.

Encode and decode JWT tokens.

Show how long packets take to reach a host.

Look up DNS records for a domain.

List WHOIS contact info for a domain or IP.

Test whether a TCP port is open.

Get hostname by IP address.

Detect possible proxy indicators.

Estimate your download speed from our server.

Measure latency and download speed from our server.

Calculate subnet range by network mask.

Calculate network mask by host range.

Detect country by IP or hostname.

Convert values from one unit to another.

Convert date and time values between global time zones.

Calculate date-time differences and add or subtract durations.

Calculate exact age, total days lived, and next birthday details.

Estimate website project budget and timeline from scope inputs.