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View a FRM file online, free

Open and read .FRM files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .FRM file here

Opens your .FRM file right here.

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Up to 50 MB · 160+ text and code extensions
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100% free. No limits on use

What you get for a .FRM file

We don't have a dedicated viewer for this format, so we identify and inspect it instead — honestly, only what can be read from the file.

01

Drop your .FRM file

Choose it or drag it in. It's read right here in your browser.

02

We identify it

We read the magic bytes to tell what the file really is, its MIME type, and whether the name matches the contents.

03

See the details

Any metadata we can extract (dimensions, EXIF/GPS, document author and dates), a hex view, plus readable text and strings found inside.

What is a .FRM file?

Plain text that programs, servers and people write every day.

A .FRM file is a MySQL Database Format File used to store database data. These files contain structural information and table definitions for the MySQL database management system. They are typically accessed and managed using MySQL, MySQL Enterprise Edition, and MySQL Enterprise Backup.

Programs that open .FRM files

Windows
MariaDB Server, MySQL Server, mysqlfrm (MySQL Utilities)
macOS
MySQL Server
Linux
MySQL / MariaDB Server, mysqlfrm (MySQL Utilities)
.FRM format details
Full nameMySQL Table Definition File
DeveloperMySQL AB / Oracle Corporation
First released1995 (MySQL 1.0, used by ISAM/MyISAM/InnoDB through MySQL 5.7)
CategoryText & Code
MIME typeapplication/octet-stream
SignatureFE 01 No printable signature - binary header begins 0xFE 0x01 (version-dependent)

Related viewers

Every viewer is free to use.

Frequently asked questions

Is my .FRM file uploaded anywhere?

No. The file is read and highlighted for you.

Why do some characters look wrong (é, ł)?

That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.

Can it handle huge log files?

Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.

How do the log level filters work?

We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.

Can I edit the file?

This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.

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