WebDev — Online tools

Use these free web tools directly in your browser, with no signup.

Use these online WebDev tools to check an interface, prepare a robots.txt file or quickly analyze an Apache log. This category brings together practical tools for checking readability, guiding crawlers and understanding what is really happening in a site’s requests.

Apache log analyzer

Analyze an Apache access.log in your browser.

Contrast checker

Check the contrast between two colors.

Robots.txt generator

Create a clear and compact robots.txt.

About these tools

AppErgo’s WebDev tools are designed for quick everyday checks. The contrast checker helps verify that text remains readable according to AA and AAA references. The robots.txt generator creates a clear file grouped by rule type, with useful directives for search engines and crawlers. The Apache log analyzer turns an access.log snippet into readable tables so you can spot active IPs, known bots, HTTP statuses and the most requested URLs.

These tools do not replace a full audit, but they provide immediate reference points before publishing a page, changing a configuration or investigating unusual traffic. Processing happens directly in the browser, without sending your colors, logs or technical data to AppErgo’s server.