Tools for everyone who keeps the web running.
70 fast utilities. No sign-up, no limits, no catch. From DNS, SSL and domain checks to formatters and converters, built by the team behind Uptimeify, hosted on European infrastructure.
Made and Hosted in the
European Union
GDPR-Compliant Hosting
in Germany
GEO-Redundant Replica
across the EU
13 tools
Converter Tools
13Convert between formats, time and encodings.
Unix Timestamp Converter
Convert between Unix time and human-readable dates, both ways.
Base64 Encoder & Decoder
Encode and decode Base64 strings instantly (UTF-8 & URL-safe).
Cron Expression Generator
Build a crontab schedule, read it in plain English and preview the next runs.
URL Encoder & Decoder
Percent-encode and decode URLs and query strings.
HTML Escaper & Unescaper
Escape and unescape HTML entities.
JavaScript String Escaper
Escape and unescape JavaScript string literals.
XML Escaper & Unescaper
Escape and unescape XML strings.
YAML to JSON Converter
Convert between YAML and JSON in both directions.
CSV Converter
Convert CSV to JSON, XML, YAML or SQL.
JSON to Code
Generate TypeScript, Go, Python or JSON Schema types from JSON.
IPv4 Converter
Convert IPv4 between dotted, integer, hex and binary notation.
IPv6 Compressor
Compress and expand IPv6 addresses (RFC 5952).
Data Unit Converter
Convert between bytes, KB, MB, GB, TB and more (decimal & binary).
Frequently asked questions
Yes. All 70 tools run with no account, no payment details and no usage limit. Open a tool, enter your domain, IP or text and get an instant result. We build these utilities as an open toolbox for DevOps and web professionals, not as a funnel with a paywall behind it.
The team behind Uptimeify, a monitoring platform for agencies and MSPs. The same people who run our probing infrastructure build these tools, because we rely on them in our own daily work. The collection stands on its own: you need no Uptimeify account to run a WHOIS, an SSL check or a JSON formatter.
Check domains and DNS, validate SSL certificates and email setups, test networks, format code and data, convert between formats and calculate SLA or bandwidth figures. The collection spans domain, DNS, sysadmin, developer, validation, formatter, cloud, content, converter, thread-dump and status tools. Use the category filter at the top to reach the right utility faster.
No. Formatters, converters and generators run directly in your browser, so your input never leaves your device. Tools that need a live query, such as DNS, WHOIS or SSL checks, reach the target host from our European infrastructure. Everything is hosted in Frankfurt, on a European stack without US sub-processors with data access.
Yes. The collection grows around what users ask for. If a utility is missing, tell us: we prioritise what web professionals need most often in daily work. The suggestion button sits at the bottom of the page.
The live tools (DNS, WHOIS, SSL, ping, port, HTTP header) query the target host from our European probe nodes, the same infrastructure that powers the monitoring. You get the unfiltered answer: full DNS records including TTL, the complete certificate chain with expiry and issuer, raw response headers with the redirect chain. No aggregated scoring, no polished summary. Client-side tools (formatters, escapers, encoders, generators) run entirely in the browser with no server round-trip, so you can use them on internal or non-public values without anything leaving your device.
Missing a tool?
Tell us what would make your day easier. We build the utilities web professionals actually need, just like the monitoring platform behind them.