IMG to RAR Converter
Convert IMG to RAR online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
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Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is an IMG file?
The IMG file extension denotes a raw disk image containing a sequential, bit-for-bit binary copy of a physical storage medium, ranging from legacy floppy disks to modern hard drives. Unlike container formats with standardized headers, IMG files typically exist as flat binary files consisting solely of sector data, preserving the original file system structure (e.g., FAT32, NTFS, ext4) and partition schemes such as the Master Boot Record (MBR) or GUID Partition Table (GPT). This format is the standard artifact for Android firmware distribution (system.img), QEMU virtualization, and Raspberry Pi OS deployment, serving as a direct serialization of a volume without additional metadata compression.
How to open an IMG file
MacOS allows for native mounting of IMG files through the Apple DiskImageMounter utility, treating the file as a virtual volume. On Windows operating systems, native support is limited; users must utilize third-party mounting software such as WinCDEmu or Daemon Tools to emulate a physical drive. For static analysis and file extraction without mounting, 7-Zip and WinRAR are capable of parsing the internal file system structure, enabling users to access the contained data directly.
IMG Technical Info
- Full Name
- Raw Disk Image
- Developed By
- Generic / Multiple Vendors
- Initial Release
- 1980s
- MIME Type
- application/octet-stream
What is a RAR file?
RAR (Roshal Archive) is a proprietary archive file format developed by Eugene Roshal that supports data compression, error recovery, and file spanning. It utilizes a variation of the LZSS algorithm with a sliding window size of up to 4 MB (in RAR4) or 1 GB (in RAR5), combined with Huffman coding. Key technical features include support for AES-256 encryption, BLAKE2sp hash algorithms for file integrity, and specialized recovery records that allow for the reconstruction of damaged data. The format structure supports solid archiving, where multiple files are treated as a single continuous data stream to improve compression ratios.
How to open a RAR file
Due to the proprietary nature of the RAR licensing, creating RAR files requires licensed software (WinRAR), though extraction is supported by various free tools. Windows users typically use WinRAR or 7-Zip to extract contents. macOS users can utilize The Unarchiver or Keka. On Linux, the non-free unrar package or the open-source 7z (p7zip-full) package provides extraction capabilities via the command line.
RAR Technical Info
- Full Name
- Roshal Archive
- Developed By
- Eugene Roshal
- Initial Release
- 1993
- MIME Type
- application/vnd.rar
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Why RunConvert
The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
Convert IMG to RAR in seconds
Every IMG to RAR conversion runs on our servers, so your device stays fast and the output quality stays intact.
Fast, cloud-powered
No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
Secure & private
Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
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Developer API
Convert IMG to RAR via API
Automate IMG to RAR conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "img-to-rar",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "rar"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.img
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.