Free tools
Free proxy tools and data calculators
Small converters and calculators for preparing a proxy list, planning proxy traffic and sizing eSIM data for a trip. No account needed. Each tool explains its method and its limits on its own page.
- Proxy lists
Proxy format converter
Rewrite a proxy list between host:port:user:pass, user:pass@host:port and URL formats, or turn it into curl, Python or environment settings. Conversion runs in your browser.Open the tool → - Proxy traffic
Proxy bandwidth calculator
Turn requests, transferred data and retries into a GB estimate, add headroom and review the matching traffic amount.Open the tool → - Proxy traffic
Price monitoring traffic planner
Scale the traffic of a measured sample run by products, markets and checks per day, counting only the observations you accepted.Open the tool → - eSIM data
eSIM data calculator
Turn your own measured mobile-data use into a trip budget, with the extra use and reserve you choose.Open the tool →
Before you rely on a result
The numbers come from your own measurement.
The calculators scale a sample you measure yourself. Their results are planning estimates, not billed usage, a plan allowance or a price quote, so check current prices and plan details before you buy.
The guides behind the inputs: how many GB of proxy traffic you need, what counts as proxy traffic, proxy URL and list formats, proxies for price monitoring and choosing an eSIM for a multi-country trip.
For setup and troubleshooting, browse all proxy, eSIM and SMS guides. Current per-GB rates are on the pricing page.