Convert GRO4 to FLIF

Bulk GRO4 to FLIF conversion with consistent results. Set it up once, process thousands of files with the same quality every time.

Tired of converting GRO4 files one at a time? reaConverter processes entire folders to FLIF automatically. Handles large batches reliably without crashes or timeouts.

Download
reaConverter
Convert
GRO4 to FLIF
Online
Convert

How to Convert Multiple GRO4 Files to FLIF?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.

reaConverter logo
Install reaConverter

2. Load your GRO4 files

Launch reaConverter and drop in your GRO4 files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

Load your GRO4 files into reaConverter

3. Select FLIF as output format

Pick FLIF as output format and choose the destination folder where you want to save new .flif files.

Select FLIF as output format

4. Start GRO4 to FLIF conversion

Then simply press the Convert button and your conversion will begin in no time!

Start Conversion

Once the conversion is complete, you can find your FLIF files in the destination folder you selected.

GRO4 to FLIF Converter

reaConverter offers the fastest, simplest solution for converting your GRO4 files into FLIF in seconds - all files processed on your PC for maximum privacy and speed.

Download Free Trial

Do more with your files

Converting GRO4 files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 14, 2026
"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
Happy User
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
Happy User
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User
"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
Walter Morgan
Walter Morgan
Satisfied Customer

GRO4 to FLIF Conversion: FAQ

What are GRO4 files?

GRO4 is a proprietary image format for the HP-49G graphing calculators. Developed by Hewlett Packard for advanced mathematical operations, these calculators can be used both for solving algebra equations and for plotting graphs. Image files associated with such devices might include screen shots or command processes, and are difficult to open using regular image viewers.

What are FLIF files?

FLIF (Free Lossless Image Format) is a royalty-free format launched at the end of 2015 as "work in progress" with the aim of offering a better alternative for storing lossless images than the existing PNG, WebP, BPG, JPEG2000 and JPEG XR. FLIF provides similar image quality as the other extensions, but in a file size than can be up to 74% smaller. The new format uses a form of the Adam7 algorithm for compressing images, offering progressive interlacing that allows users to obtain a reasonable encoding of an image even from a partial download.

Can reaConverter convert GRO4 to FLIF?

Yes! reaConverter instantly converts .gro4 to .flif with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert GRO4 to FLIF online?

If you only need to convert a few GRO4 files to FLIF format, feel free to try our free online free online GRO4 to FLIF converter — perfect for small batches with no installation needed!

How can I turn GRO4 files into FLIF on my computer?

The best way to change GRO4s to FLIFs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from GRO4 to FLIF.

How can I automate GRO4 to FLIF files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert GRO4 files to FLIF using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line gro4 to flif converter for batch processing.

What else can I do with reaConverter?

Change format settingsChange DPIConvert GIS filesConvert vector filesChange color space

Find out more

Get advanced software for file conversion, processing, and editing, giving you complete, precise control over your work.
Download
reaConverter
Buy Now
reaConverter software