How to Batch Convert Embroidery Files to PES in Seconds

Introduction

If you work with embroidery machines, you’ve probably faced this problem: You have a folder full of embroidery files in different formats—DST, EXP, JEF—but your Brother machine only reads PES. Manually converting each file with a standard PES file converter is tedious and time-consuming.

The good news? You don’t have to do it one by one. With the right PES file converter tools, you can batch convert embroidery files to PES in seconds. This guide covers the fastest conversion methods, best PES file converter software options, and pro tips for seamless format changes.

Why Convert to PES Format?

PES is the native file format for Brother embroidery machines, including popular models like:

PE-800
Innov-is
PR series

If you’re using a Brother machine, converting to PES ensures:
✔ Full compatibility with your embroidery machine
✔ No errors during stitching
✔ Access to all design features (like color changes)

Method 1: Use Dedicated Conversion Software

The fastest way to batch convert embroidery files is with specialized software.

Best Programs for Batch Conversion

Software	Key Features
Wilcom TrueSizer	Free, supports multiple formats, simple UI
Embird	Batch processing, advanced editing tools
SewWhat-Pro	Lightweight, fast conversions
BuzzXplore	Free, supports rare formats

How to Batch Convert with Wilcom TrueSizer

Download and install Wilcom TrueSizer (free version works).
Open the software and go to File > Batch Convert.
Select your input folder (where your original files are stored).
Choose PES as the output format.
Pick a destination folder for converted files.
Click “Convert”—done in seconds!

Pro Tip: Some software lets you resize designs during conversion, which is handy for multi-hooping projects.

Method 2: Online Converters (No Installation Needed)

If you don’t want to install software, web-based tools work in a pinch.

Top Free Online Converters

MyEditor Online (supports PES, DST, EXP)
EmbroideryConversion.com (simple drag-and-drop)
StitchBuddy Web (good for Mac users)

Limitations of Online Tools

⚠ File size limits (usually under 5MB)
⚠ Slower for large batches
⚠ Privacy concerns (avoid uploading sensitive designs)

Best for quick, one-off conversions—not bulk processing.

Method 3: Automated Scripts (For Tech-Savvy Users)

If you convert files daily, a custom script can save hours.

Python Script Example (Using PyEmb)

import pyemb  
import os  

input_folder = "C:/Embroidery_Designs"  
output_folder = "C:/PES_Converted"  

for file in os.listdir(input_folder):  
    if file.endswith((".dst", ".exp", ".jef")):  
        pyemb.convert(os.path.join(input_folder, file), os.path.join(output_folder, file.replace(".dst", ".pes")))

Requirements: Basic coding knowledge + Python installed.

Common Conversion Problems & Fixes

1. Design Distortion After Conversion

Cause: Incorrect stitch mapping.
Fix: Use high-quality conversion software (avoid free online tools for complex designs).

2. Missing Stitches or Colors

Cause: Format limitations.
Fix: Manually check the file in an embroidery viewer before stitching.

3. Machine Doesn’t Recognize PES File

Cause: Corrupted file or wrong PES version.
Fix: Re-convert using “PES Version 1” (older Brother machines need this).

Pro Tips for Faster, Better Conversions

✔ Organize files first—put all designs in one folder before converting.
✔ Check stitch count—some software reduces stitches during conversion.
✔ Test one file first—verify quality before batch processing.

Conclusion

Batch converting embroidery files to PES doesn’t have to be a headache. Whether you use dedicated software, online tools, or automated scripts, the right method can save you hours of manual work.

Quick Recap:

For most users: Wilcom TrueSizer (free + reliable).
For occasional conversions: Online tools (but watch file sizes).
For power users: Custom scripts (maximize efficiency).

Now you can convert 100 designs in the time it used to take to do one—happy stitching!

PES File Converter