Free proxy tools
Proxy Tools
Small tools for the jobs around a proxy list: work out how many you need, load them into your bot, and find out why a request got blocked.
- Tools
- 6
- Account needed
- None
- Your data
- Stays local
Plan
Size the pool before you buy
Work out how many proxies or how much data a job needs, so you do not buy too little or pay for idle capacity.
Delay Calculator
OpenTurn your SKU count and monitor delay into the number of proxies a retail monitor needs on Target or Amazon.
Use it when You are setting up a monitor and need a proxy count.
- Retail
- Monitors
Data Usage Calculator
OpenEstimate residential proxy bandwidth in GB for scraping, monitoring, streaming, and account work, with a retry buffer.
Use it when You need to pick a residential data pack.
- Residential
- Bandwidth
Set up
Get proxies into your tools
Load a proxy list into bots, scrapers, and browsers in the format each one accepts.
Proxy Converter
OpenPaste a proxy list and rewrite it into the format your bot or browser expects, with host, port, and login kept intact.
Use it when Your tool rejects the proxy format you were given.
- Bots
- Formats
Proxy Extension
Get itSwitch Chrome between your saved proxies from the toolbar, without opening system network settings.
Use it when You test sites by hand through different proxies.
- Chrome
- Browser
Debug
Find out why a request failed
Read the evidence a blocked session leaves behind, from status codes to the identity your browser sends.
HAR Analyzer
OpenOpen a HAR file to find blocked requests, 403, 407, and 429 errors, Cloudflare hints, and slow timing phases.
Use it when A site blocks you and you need to see which request failed.
- Blocks
- HAR files
User Agent Checker
OpenSee the user agent your browser sends, or paste any UA string to parse its browser, OS, and device.
Use it when You need to confirm the identity your browser or bot shows.
- Fingerprint
- Headers
Not sure where to start
Match the problem to the tool
Each tool answers one question. Find yours in the list and open the tool next to it.
- How many proxies do I need for 50 SKUs at a 3,000 ms delay? Delay Calculator
- Is a 10 GB residential pack enough for this scrape? Data Usage Calculator
- My bot wants user:pass@host:port, but my list is host:port:user:pass. Proxy Converter
- I want to check a site by hand through a different proxy. Proxy Extension
- Checkout returns 403 or 429 and I cannot tell which request failed. HAR Analyzer
- Does my headless browser still look like real Chrome? User Agent Checker
Proxy tools FAQ
Questions about the free tools
Are these proxy tools free?
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Yes. Every tool on this page is free and needs no account. You do not need an Unknown Proxies plan to use them.
Do the tools upload my data?
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No. The calculators, the proxy converter, the HAR analyzer, and the user agent checker run in your browser. Your proxy lists and HAR files are not sent to our servers.
Which tool should I start with?
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Start with the job you have. Use the delay calculator or the data usage calculator before you buy, the proxy converter when you load proxies into a tool, and the HAR analyzer when requests get blocked.
Do the tools work with proxies from other providers?
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Yes. The converter accepts any host, port, username, and password list, and the HAR analyzer reads any standard HAR file. The delay and data usage results are estimates that apply to any provider.
Need proxies for the job?
Dedicated ISP and residential proxies for retail monitoring, ticketing, and scraping, with support from people who run the same workloads.