Extract text from Testo measurement data files (TJF)
To convert TJF measurement files to another format, you need Testo Smart Probes App or other Data software.
To convert other file formats to the "Measurement Data File" file type, you need software like Testo Smart Probes App or a similar tool.
A .TJF file is primarily a Testo JSON Format measurement data file. It is generated by Testo instruments and companion applications, such as the Testo Smart Probes App, to store environmental readings, temperature logs, and HVAC system diagnostics. A secondary, less common use is associated with Happy Wheels game data files from Totaljerkface.com.
The main disadvantage of the .TJF format is its proprietary file extension. Although the internal structure of Testo files is standard JSON, operating systems and typical office suites do not recognize the .tjf extension. This causes confusion and forces users to rely exclusively on Testo's proprietary apps or desktop software to view their own measurement logs in a readable dashboard.
Users frequently need to convert .TJF files to standard tabular data formats like CSV or XLSX to perform custom statistical analysis, build pivot tables, or share logs with clients who do not use Testo software. Because standard online converters fail to recognize the .tjf extension, processing these files can be frustrating.
Since this format is essentially a disguised extension to lock users into a specific hardware ecosystem, it is difficult to convert directly using generic online tools. If our analysis confirms standard JSON or HTML under the hood, we can extract the text or help convert it into a readable format.
Convert.Guru analyzes your TJF file, detects the exact format, and lets you read the text inside.
Users also converted TIF, TSD, TRA and EXPORT files.
If you want to convert TJF file to JPG, PDF, PNG, GIF, BMP, TIFF, TIF, WEBP, ICO, CUR, PSD or PSB, you can use Testo Smart Probes App or similar software from the "Measurement Data Storage" category. In the File menu, look for Save As… or Export….
To convert RAW, PNG, AI, NEF, PSB, DNG, SVG, GIF, EPS, JPG, ARW or PDF files to TJF, try Testo Smart Probes App or another comparable tool in the "Measurement Data Storage" category.
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 TJF converter.