7 Free Rotating Proxy APIs Worth Testing Before You Pay

What a Free Rotating Proxy API Actually Does

A free rotating proxy api gives you one endpoint that assigns a different exit IP per request, so you never maintain a proxy list yourself. Free versions come in two shapes: managed tiers with a monthly allowance (ProxyScrape, Webshare, ScraperAPI) and open lists you pull from GitHub or Proxifly. Both are fine for testing and small jobs. Neither is a production pool.

How to Judge a Free Rotating Proxy API Before You Commit

A free tier is only useful if it matches the shape of your job. Four things decide that, and the headline IP count is not one of them.

• Rotation model. Per-request rotation suits crawling; sticky sessions suit logins and paginated flows. Confirm which one the free tier allows before you build around it.
• Allowance unit. Some count IPs (ProxyScrape’s 100, Webshare’s 10), some count bandwidth, some count credits whose value changes per target. Convert to requests against your own target before comparing anything.
• Format and protocol. A JSON endpoint you can call from a script beats a text file you paste into a config. SOCKS5 support matters if your client needs it.
• Who else is on the IP. Free datacenter pools are shared with everyone on the tier. A hundred addresses that half the internet has already hammered are worth less than ten that answered a health check five minutes ago.

The fastest way to settle all four is to run the same small job through every candidate in one sitting. This walkthrough of rotating proxy free trials covers what to measure while you do it: success rate, median latency and how fast a dead IP gets dropped.

7 Free Rotating Proxy API Options You Can Test Today

Each entry is free to start and callable from a script. Paid ladders appear only where they change the decision.

1. ProxyScrape Free Tier — 100 Rotating IPs, No Signup

ProxyScrape’s free tier is 100 shared rotating datacenter proxies, mostly US and Canadian addresses, with no registration required and unlimited bandwidth as advertised. You can call it two minutes from now, which makes it the fastest way to prove your rotation code works at all. If bandwidth rather than IP count is your constraint, this comparison of unlimited bandwidth rotating proxy options covers the tiers that do not meter traffic.

• Pros: no account, no card; a new IP on every request; nothing to install.
• Cons: datacenter ranges only, North America only, shared with every other free user, so block rates move hour by hour.

Best for: a smoke test of rotation logic in a script you have not finished writing.

2. Webshare Free Plan — 10 Proxies, 1 GB a Month

Webshare’s free plan is 10 shared datacenter proxies with 1 GB of bandwidth per month. The paid ladder behind it is the reason to start here: residential runs $3.50/GB on a 1 GB plan and falls to $1.40/GB at 3,000 GB, while static ISP proxies start around $0.30/IP at the 100-proxy tier. There is no residential free trial, so the datacenter tier is the only no-cost look you get.

• Pros: a documented upgrade path with published prices you can budget against.
• Cons: 10 IPs is thin for rotation; 1 GB disappears on media-heavy pages; datacenter only.

Best for: small test jobs on a project that may later need residential bandwidth.

3. Proxifly — Free JSON Lists Plus a REST API

Proxifly publishes HTTP, HTTPS, SOCKS4 and SOCKS5 proxies from more than 100 countries, exportable as .txt, .csv or .json, with a REST API and a Node.js SDK on top. That makes the free list usable by a script rather than by hand. Its published pricing runs $7/mo for Plus (500 credits, HTTP/SOCKS4, 50 countries), $15/mo for Pro (3,000 credits, all protocols, 100+ countries, speed-tested) and $24/mo for Max (10,000 credits, dedicated proxies, full API access).

• Pros: the JSON export drops straight into a script; four protocols; country filtering.
• Cons: the Basic tier is 100 credits, HTTP only, 10 countries and no auto rotation, so the features worth paying for start two tiers up; a free list is still a list, so verify entries before you route traffic through them.

Best for: developers who want a machine-readable endpoint with SOCKS support.

4. ScraperAPI Free Tier — 1,000 Credits, Rotation Handled

ScraperAPI works the other way round: you send a URL, it assigns the IP, retries failures and sets headers. The free tier is 1,000 ongoing credits with up to 5 concurrent connections, plus a 7-day 5,000-credit trial with no card. Requests route through 40M+ IPs in 50+ countries, and render=true runs a headless browser on JavaScript-heavy pages.

• Pros: no proxy plumbing; retries and rendering included; a Domain Cost Estimator and max_cost parameter let you price a URL before spending credits.
• Cons: credits change value per target — 1 for standard HTML, 5 for Amazon, 25 for Google or Bing, 30 for LinkedIn, plus 10 on domains protected by Cloudflare, Datadome or PerimeterX. Exceed 5 concurrent connections and the request returns HTTP 429: refused, not charged.

Best for: prototypes against JS-heavy pages where a hand-built retry layer costs more than the credits.

5. GitHub Rotating-Proxy Lists — Free and Checked Hourly

Public repositories publish free HTTP and SOCKS proxies on an hourly schedule and record every check as passed, failed or could not run. The better ones ship a –pick –verify flow, a –diagnose flag, a Python API and an MCP server, so your script can pull only addresses that answered a health check minutes ago.

• Pros: no cost, transparent pass/fail history, verification built in.
• Cons: raw addresses with no support; you own rotation, retries and failure handling; an IP that passed at 09:00 can be dead by 10:00.

Best for: hobby scripts, and for seeing what pool failure modes look like before you pay anyone.

6. Scrapoxy — Self-Hosted Rotation You Control

Scrapoxy is free, self-hosted software: you run it in your own cloud account, define the pool from instances or providers you plug in, and it handles the rotation layer in front of them.

• Pros: no per-gigabyte vendor margin; full control over which IPs enter the pool; traffic stays inside your own network boundary.
• Cons: you pay the cloud bill and operate the service; you own the reputation of every IP you add; setup takes an afternoon, not five minutes.

Best for: teams already running cloud infrastructure who want rotation as an internal service.

7. Smartproxy Trial — 100 MB of Real Residential Traffic

Smartproxy offers 3 days and 100 MB of residential traffic with access to the full residential pool, then requires a paid subscription. It is a trial rather than a free API, and it earns a slot because 100 MB of residential addresses answers a question free datacenter pools cannot: whether residential IPs change the outcome on your target at all.

• Pros: real residential addresses; short commitment; no code change if you already route through a proxy URL.
• Cons: 100 MB goes fast with images; 3 days only; a paid plan follows.

Best for: testing whether residential IPs change a known block before you commit to a per-gigabyte bill.

Free Rotating Proxy Options Compared

All seven are free to start. The differences that decide it are the allowance unit and who controls rotation.

Credit Math: What a Free Allowance Really Buys

Convert every free tier into requests against your own target before you choose. The headline number is almost always measured in something else.

• ScraperAPI’s 1,000 free credits cover about 1,000 standard HTML pages, 200 Amazon pages at 5 credits, 40 Google or Bing results at 25, or 33 LinkedIn pages at 30.
• A 100,000-credit Hobby plan at $49/mo covers roughly 6,600 Amazon pages once JS rendering adds 10 credits per request.
• ProxyScrape’s 100 IPs come with unlimited bandwidth as advertised, so your ceiling is IP reputation rather than volume.
• Webshare’s 1 GB per month is a hard ceiling; one media-heavy page can spend megabytes on its own.

Run the arithmetic in both directions. Price the target first with a Domain Cost Estimator or a max_cost cap so one 30-credit URL cannot eat a month of allowance — ScraperAPI’s own pricing page documents the multipliers per domain. Then compare the result with what a paid pool costs per usable page. This residential proxy API shortlist ranks providers on cost per usable gigabyte rather than the advertised rate.

Where Free Rotation Breaks Down — and What to Log

Free pools fail in three predictable ways. Addresses get burned by other users, so your request arrives from an IP the target has already scored. Latency spikes at peak hours because the pool is oversubscribed. And some free endpoints log or rewrite traffic, which is a data problem before it is a speed problem.

Burned IPs are not something you tune around, but you can make failures visible in minutes. Log five fields per request: the proxy you used, the exit IP the target actually saw, the status code, the latency and the response size. Compare the exit IP with the proxy you requested — a mismatch means a transparent hop sits in the chain. A response size that collapses to a few hundred bytes usually means a block page came back with a 200.

Treat each site’s terms as the boundary of what you collect. A free pool does not change which requests you are allowed to make, and a premium rendering tier on a scraping service is a cost multiplier, not permission.

import random, time, requests

PROXIES = [
    "http://user:[email protected]:8080",
    "http://user:[email protected]:8080",
]

def check(proxy):
    started = time.time()
    try:
        r = requests.get(
            "https://api.ipify.org?format=json",
            proxies={"http": proxy, "https": proxy},
            timeout=10,
        )
        return {
            "proxy": proxy,
            "status": r.status_code,
            "exit_ip": r.json().get("ip"),
            "bytes": len(r.content),
            "ms": int((time.time() - started) * 1000),
        }
    except Exception as exc:
        return {
            "proxy": proxy,
            "status": "error",
            "exit_ip": None,
            "bytes": 0,
            "ms": int((time.time() - started) * 1000),
            "error": str(exc),
        }

for proxy in random.sample(PROXIES, len(PROXIES)):
    print(check(proxy))

When Rotation Is the Wrong Tool: One Stable IP per Browser Profile

Rotation optimises for one thing: no two requests appear to come from the same place. A logged-in browser session needs the opposite. When you sign in, the site binds the session to an IP, a user agent and a fingerprint, then re-checks that bundle on later requests. Change the IP mid-session and you get a re-authentication prompt, a verification step or a session reset — a self-inflicted failure, because nothing is wrong with the account.

Sticky sessions get you partway: one exit IP held across several requests. This comparison of rotating vs sticky sessions covers where that window ends. Past it you need a profile, not a proxy: a fixed network identity per login, carried alongside the cookies and fingerprint that belong to it.

Send.win is built for that second job. It is a browser profile manager, not a proxy network: each isolated profile keeps its own cookies, storage, session, fingerprint settings and proxy, so a login stays on one network identity for as long as the profile lives. Fingerprint protection covers canvas, WebGL, audio, fonts and hardware inside the browser engine, per profile. Residential proxies are included on Pro (5 GB/month) and Team (20 GB/month), bring-your-own HTTP/SOCKS5 works on both, and timezone, locale, WebRTC and geolocation follow the proxy’s exit IP. The cloud browser runs on an EU server in Helsinki and opens from any device with nothing installed, while the desktop app covers Windows, macOS and Linux.

Frequently Asked Questions

What is a free rotating proxy API and how is it different from a proxy list?

A rotating proxy API gives you a single endpoint that assigns an IP per request and handles retries and protocol differences. A proxy list is just addresses: your code picks one, retries on failure and discards dead entries. The API removes maintenance work; the list removes cost.

Which free rotating proxy options are worth testing first?

Start with ProxyScrape’s 100 free rotating datacenter IPs, because there is no signup and you can test within minutes. Add ScraperAPI’s 1,000 free credits if your target needs JavaScript rendering, since it removes the retry layer entirely. Test both against the same canary URL rather than trusting a published success rate.

How do I get a free proxy list in JSON for my script?

Proxifly exports .txt, .csv or .json and exposes a REST API plus a Node.js SDK, so you can pull a filtered list per run. GitHub-hosted lists often ship a Python API and a –pick –verify flag that returns only proxies which passed a recent health check.

What are the limits of free rotating proxies?

Shared datacenter IPs with burned reputation, small bandwidth or credit allowances, no uptime commitment, and endpoints that may log traffic. Free pools are also oversubscribed at peak hours, so latency measured at 10:00 is not the latency you get at 20:00.

When should I switch from a free tier to a paid pool?

When the success rate on your actual target drops below what the job tolerates, or when maintenance time costs more than the subscription. Convert both to cost per usable page: a $49 plan returning 6,600 working Amazon pages can beat a free pool that returns block pages.

How do sticky sessions work with a rotating proxy API?

Instead of a new IP per request, the service holds one exit IP for a session window, usually by keeping the same session token or connection alive. That covers logins and pagination. Check the documentation for the free tier specifically, since sticky sessions are often described only for paid plans.

Can I use free rotating proxies for browser profiles?

It usually backfires. A logged-in session is tied to an IP, user agent and fingerprint, so an address change mid-session triggers re-authentication or a verification step. Pin one proxy per profile instead, and keep timezone and locale matched to that exit IP.

How do credit multipliers translate into a monthly bill?

Divide your allowance by the multiplier for each target. At 30 credits per LinkedIn page, 100,000 credits cover about 3,300 pages; at 5 credits plus 10 for rendering, an Amazon page costs 15 and the same allowance covers roughly 6,600. Price the URL first so one expensive domain cannot consume the month.

How Send.win Helps With Free Rotating Proxy Api

Send.win is a browser profile manager for professionals and teams: every account gets its own isolated browser profile.

• Isolated profiles – separate cookies, storage and sessions per profile
• Fingerprint protection – each profile keeps its own consistent browser fingerprint, so profiles never share one browser identity
• Desktop app + cloud browser – native app for Windows, macOS and Linux, or run profiles in the cloud with no install
• Residential proxies included – on Pro and Team, with timezone and locale matched to the proxy
• Team sharing – share a signed-in profile with a teammate without sharing the password

Try the free cloud demo — no install — or download the desktop app. Paid plans start at $19/month, and your first card purchase is covered by a 7-day money-back guarantee (see pricing).

Related Products & Resources

• Download
• Demo Browser
• Pricing
• Fingerprint Checker
• Canvas Fingerprint Test