URL Checker

Verify, validate, parse, encode, and decode URLs

URL Checker
URLs to Check0 URLs

Enter URLs on the left and click Check URLs to start

Upload a .txt or .csv file for bulk checking

Free Online URL Checker

Use the URL Checker to quickly see if your links are active, broken, or redirecting with tests that run right in your browser. You can paste your URLs one by one or upload a bulk list from a .txt, .csv, or .json file to get status codes, response times, and SSL details for every entry. In addition to link checking, you have access to five other useful utilities including format validation, component parsing, encoding, decoding, and redirect tracing. Since every operation runs locally on your machine, your data stays private and never touches our servers.

URL Checker

Test link reachability with HEAD requests and see status codes, response times, and SSL status for each URL.

URL Validator

Verify URL syntax and structure without making network requests for instant format checking.

URL Parser

Break any URL into protocol, hostname, port, path, query parameters, and hash fragment.

URL Encoder

Convert special characters to percent-encoded format for safe use in query strings and API calls.

URL Decoder

Reverse percent-encoding to reveal the original readable text from encoded URLs and parameters.

Redirect Checker

Follow HTTP redirects to discover the final destination of short links, affiliate URLs, and redirects.

Online URL Checker with Bulk File Upload

While checking a single link is fast, professional workflows often require auditing hundreds of URLs at a time. Simply drag and drop a .txt or .csv file with up to 500 entries, and the checker will process them while providing live status updates. Every result clearly shows a color-coded status icon, the HTTP response code, response time, and SSL connection details. When a URL redirects, the final destination is listed right beneath the original link. After your scan is complete, you can download a full CSV report to keep for your records or share with your team.

Drag-and-Drop File Import

Just drop your URL list onto the input panel to load everything at once. The checker supports .txt files, CSVs with URLs in any column, and JSON arrays. Duplicates are removed automatically and the list is capped at 500 URLs to ensure the tool remains fast and responsive.

CSV Export for Record Keeping

Clicking the download button creates a structured CSV file that includes the URL, status, response time, and redirect targets. You can open this file in any spreadsheet program to sort, filter, or merge it with your other link audit data.

URL Validation, Parsing, Encoding, and Decoding

Our built-in sub-tools handle the common URL tasks that developers and marketers face every day. Use the URL Validator to catch syntax errors and malformed links before they cause issues in production. The URL Parser breaks down every part of a link, from the protocol to query parameters, into an easy-to-read table. Our Encoder and Decoder tools manage percent-encoding, helping you convert special characters for query strings or turn encoded strings back into readable text.

Validate Without Network Requests

Because URL validation is based purely on syntax, you get results instantly without waiting for HTTP responses. Paste in any number of links to see immediate Valid or Invalid badges for each one. It's a great way to clean up spreadsheet data or double-check links in your CMS before you hit publish.

Parse Complex URLs into Components

Reading long URLs with multiple query parameters and fragments can be a headache. The parser separates the protocol, hostname, path, and other components into clearly labeled rows. You'll find query parameters in their own section, with every key-value pair listed separately so you can easily inspect UTM codes or API endpoints.

Free URL Checker for Developers, SEO Specialists, and Content Teams

Dead links can damage your search rankings, frustrate users, and hurt your brand's credibility. Performing a quick bulk check before a site update or content launch helps you catch broken links before your visitors do. SEO specialists can use it to audit sitemaps, developers can verify API endpoints, and content teams can ensure resource links in their articles still work correctly. All these features are free to use right away, with no accounts, no watermarks, and no usage limits.

No Signup, No Watermark, No Limits

Get full access to all six URL tools instantly, without worrying about paywalls, premium tiers, or daily quotas. Feel free to download as many CSV reports and validate as many links as your project requires. For your privacy, your data stays in your browser and is cleared once you close the tab.

Client-Side Processing for Privacy

Every tool, from the link checker to the encoder, runs entirely in your browser using JavaScript and the Fetch API. This means your URL lists and results never leave your device or touch a remote server. It’s a secure way to audit internal company links, staging environment URLs, or any address you want to keep private.

Related URL and Link Analysis Tools

These related sub-tools complement your URL checking workflow:

  • URL Validator -- verify URL format and syntax without network requests
  • URL Parser -- break down URLs into protocol, hostname, path, and query components
  • URL Encoder -- convert special characters to percent-encoded format
  • URL Decoder -- reverse percent-encoding to reveal original text
  • Redirect Checker -- follow HTTP redirects to find final destination URLs

What Users Say

Rated 4.8 out of 5 based on 144+ verified user reviews

L

Linkon Patrick

US · Jun 14, 2026

★★★★★

This app is over good to use thanks

M

Mike Baker

US · Jun 12, 2026

★★★★☆

Nice service, seems to be free to use, by watching a short ad. Seems to work as it should.

N

Neetu Parihar

IN · Jun 3, 2026

★★★★★

Awesome tool and great work by developers and the team. Salute to your hardwork and dedication dudes.

A

Artos Publishing

RS · May 22, 2026

★★★★★

The Aifreeforever is simple and easy to use. From the start I didn't have any problems. Especially, I like the opportunity to work with ChatGPT 5 with no limitations.

C

Curtis Baker

US · May 2, 2026

★★★★★

With all these ridiculous prices on the over hyped AI competitors. I can't thank you, Aifreeforever, enough! Thank you for looking out for "We The People!"

M

Mohsen

IR · Jun 10, 2026

★★★★★

it was best experience

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