Developer 404 page templates

Terminals, code editors and error logs for tech and developer sites. All 10 are free to download and use, and each one is a single HTML file.

Terminal
A terminal window that runs a command, prints 'not found' and suggests going home.
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Code Editor
A code editor with line numbers, where the page file is highlighted as missing.
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HTTP Response
The raw HTTP response for a 404, with headers and a short JSON body.
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JSON Viewer
A friendly JSON tree view of the error, in soft pastel colors.
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Stack Trace
A funny stack trace that explains exactly how the visitor got lost.
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Git Log
A git log that shows the commit where the page was deleted.
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Console
A browser console panel with a red error line and a helpful log message.
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Man Page
A Unix manual page for the missing page, with name, synopsis and 'see also'.
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Compiler Error
A build that failed with a friendly compiler message pointing to the typo.
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Regex Tester
A regex tester where the pattern for the page matches nothing at all.
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How to use one

Click Download to save the template as 404.html. Open it in any text editor, change the brand name, colors and links, then upload it to your site. The setup guide shows how to make your server use it for every missing page.

Other styles

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Developer 404 page templates

Terminal

Code Editor

HTTP Response

JSON Viewer

Stack Trace

Git Log

Console

Man Page

Compiler Error

Regex Tester

How to use one

Other styles