Developer
13 free online tools in Developer: Encoding, JSON & XML, UUID & time, IP info, Internet speed, Domain checker, Whois, SEO checker, System status, Screen…
Open Afoli →Data & encoding
- Developer toolsRegex tester (groups, replace, explain, patterns), cron expressions (Quartz, next runs, time zones), JWT…
- EncodingBase64, Base32, Base58, Hex (text & files), URL encode/parse, HTML entities, CBOR, JWT decoder, hex dump.
- JSON & XMLValidate, format and minify JSON, tree viewer and compare; format XML; sitemap validator.
- UUID & timeGenerate and decode UUID v1/v3/v4/v5/v6/v7; convert Unix timestamps to dates and time zones.
Network
- IP infoYour IP address, city, ISP and map; look up any IP or domain, DNS records, browser details.
- Internet speedTest your internet speed: ping, jitter, download and upload, with result history.
Domains & SEO
- Domain checkerCheck if a domain name is available across dozens of TLDs (.com, .io, .ai…) at once, get name ideas
- WhoisRegistration data for domains, IPs and AS numbers: registrar, dates, status, name servers, DNS records
- SEO checkerWebsite SEO audit: score, 35+ checks (meta, content, links, technical, social), Google preview, keywords…
Code & screens
- Code playgroundWrite HTML, CSS and JavaScript and see the result instantly: highlighted editor, console, libraries…
- Screen & responsive checkerSee your screen resolution, viewport and pixel ratio; preview any website at phone, tablet, laptop and…