Extract text from ASY files
To convert your ASY file to another format, you need LTspice or other Cad software.
To convert other file formats to the "Electronic Schematic Symbol" file type, you need software like LTspice or a similar tool.
The .asy extension serves two distinct technical communities, creating frequent confusion.
Most commonly, an .asy file is a component symbol used by LTspice, a high-performance SPICE simulator software now owned by Analog Devices. These files define the graphical representation (pinouts, shapes) of electronic components within a schematic. While they are technically plain text, they are formatted strictly for the LTspice engine. Opening them in a standard text editor reveals raw coordinates and attributes, which is useless for documentation or presentation purposes. Engineers often need to convert these symbols into standard image formats (PNG, SVG) or PDF documents to include schematics in reports without requiring the reader to install proprietary simulation software.
Alternatively, .asy files are source scripts for Asymptote, a powerful vector graphics description language. These are heavily used in academia and technical publishing (often alongside LaTeX) to generate mathematical figures. The raw file is just code; it cannot be viewed as an image until it is "compiled" or converted. This presents a major problem: viewing an Asymptote file requires a complex environment installation (Ghostscript, TeX, etc.). Converting these scripts to PDF, EPS, or WebP is the standard workflow for web publishing and archiving.
Note: In medical and laboratory settings, .asy files may be proprietary assay data formats from analyzers like Roche Cobas or Eppendorf Realplex. These are generally encrypted or binary-encoded and cannot be converted by standard tools.
Convert.Guru analyzes your ASY file, detects the exact format, and lets you read the text inside.
Users also converted ZIP, CIR, FFT and VTX files.
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 ASY converter.