Click the "Select File" button above, and choose your LRU file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert LRU to another file type
To convert your LRU file to another format, you need Google Chrome or other System software.
Convert a file to LRU
To convert other file formats to the "Cache Maintenance File" file type, you need software like Google Chrome or a similar tool.
About LRU files
A .LRU file is primarily a Least Recently Used cache maintenance file. These files serve as index logs for software applications - most notably web browsers like Google Chrome and database systems built on SQLite - to track which data fragments have been accessed most recently. The file implements the LRU algorithm, instructing the system to discard the oldest, unused data first when the cache limit is reached.
From a user perspective, .LRU files are internal system artifacts. They are often binary or proprietary text formats, meaning they cannot be opened meaningfully with standard text editors like Notepad without seeing garbled data. Because they are generated automatically to manage performance, they are not designed for portability or archiving. Users typically encounter these when troubleshooting disk space issues or attempting to recover browsing history. For inspection, the best workflow is converting to TXT (to view raw paths) or CSV (to parse structure). For deeper analysis of database-linked files, treating them as SQL dumps may be necessary.
Convert.Guru analyzes your LRU file, detects the exact format, and lets you read the text inside.
If you want to convert LRU file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Google Chrome or similar software from the "Cache Indexing" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to LRU, try Google Chrome or another comparable tool in the "Cache Indexing" category.
The LRU Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our LRU converter.