The professional standard in ECU scripting

PATCH. DOMINATE. REPEAT.

ECUX is the elite browser-based platform for generating, applying, and managing WinOLS-compatible ECU patch scripts. Built for serious tuners. No software. No install. No limits.

Request Access See What We Do
Apply Patch
Generate Script
Batch Scan
Hex Editor
ECU Identifier
Similarity Check
Script Library
WinOLS Compatible
Zero Bad Flashes
Apply Patch
Generate Script
Batch Scan
Hex Editor
ECU Identifier
Similarity Check
Script Library
WinOLS Compatible
Zero Bad Flashes
188+
Preloaded Scripts
60+
ECU Types Identified
0
Bad Flashes Reported
60s
Avg Patch Time
24/7
Platform Uptime

Professional ECU
Script Tools.

Seven precision tools built for professional tuners. Every operation runs in your browser. Your ECU data never leaves your machine.

01
Apply Patch
Load a stock ECU binary and a WinOLS script. ECUX applies every replacement and outputs a ready-to-flash patched binary in seconds.
1 run credit
02
Generate Script
Compare an original ECU binary to a patched version and automatically produce a .winolsskript capturing every difference.
1 run credit
03
Batch Scan
Drop your ECU binary and ECUX scans all 188+ preloaded scripts, ranks compatibility, and applies matching patches in one click.
1 credit for full batch
04
Similarity Check
Get an instant byte-level similarity percentage between two ECU files. Know compatibility before you commit to a flash.
Free — no credit
05
Script Library
188+ preloaded scripts across all major makes and models, plus your own private library that grows with every job you complete.
Included in all plans
06
Hex Editor
Professional-grade hex editor in your browser. 8/16/32-bit modes, HiLo and LoHi endianness, search and replace, Paccar fault code tool, unlimited undo, range fill. No WinOLS needed.
1 run credit

What Tuners
Are Saying

Apply Patch
★★★★★
"The apply patch tool is insane. I uploaded a Cummins ISX binary, selected a DPF delete from the library, and had a clean patched file in under 60 seconds. What used to take me 20 minutes in WinOLS is one click."
CM
Carlos M.
Diesel Tuner
Batch Scan
★★★★★
"188 preloaded scripts. Found 3 compatible matches for a Paccar MX-13 I had never touched before. Batch scan found them automatically. I didn't even know those scripts existed."
RT
Ray T.
Fleet Specialist
Script Library
★★★★★
"Been tuning diesels 11 years. The script library is worth the subscription alone. Scripts are locked — my competitors can't steal my work. That's huge in this business."
DS
Derek S.
Shop Owner · 11yr
Threshold Control
★★★★★
"Set my min script matching to 85%. Zero bad flashes since I started using ECUX. That's the difference between a $500 ECU and a brick."
MA
Miguel A.
ECU Calibrator
Similarity Check
★★★★★
"Similarity check saved me from a bad flash last week. 94% match — applied with full confidence. That one feature has paid for itself multiple times over."
TK
Travis K.
Mobile Tuner
Hex Editor
★★★★★
"The hex editor is the real sleeper feature. Paccar fault code tool alone saved me 30 minutes on a P code job. Right in the browser, no WinOLS, no dongle."
JB
Jason B.
Performance Tech

One Truck Pays
For Your Whole Month.

Monthly
$499
per month
10 run credits / month
Full access to all 6 tools
188+ preloaded scripts
Unlimited script storage
Any device, any browser
Get Started
6 Months
$1,999
$333/mo
Save $1,000
15 run credits / month
Everything in Monthly
Priority activation
Best for growing shops
Get 6 Months
Lifetime
$3,999
one-time payment
40 run credits / month
Everything in Annual
All future scripts included
4 trucks pays for itself
$199.99/yr maintenance only
Get Lifetime
RUN CREDITS
How credits
work.

Every plan includes run credits. Each ECU tool operation costs 1 credit — Apply Patch, Generate Script, Batch Scan, and Hex Editor download. Similarity Check is always free. Credits never expire. Need more capacity? Add a credit pack anytime without changing your plan.

Starter Pack
$49.99
+1 run credit
$49.99 per run
BEST VALUE
Pro Pack
$249.99
+5 run credits
$49.99 per run
Shop Pack
$449.99
+10 run credits
$44.99 per run · save $50
All plans include $199.99/yr maintenance fee · Credit packs added to existing limit · Zelle accepted · Credentials delivered within minutes

Ready to
dominate?

Message us to get started. Access is manually activated after payment verification — typically within minutes. One message is all it takes.

+1 (346) 453-0746
Pay via Zelle · Activated within minutes
WhatsApp · Text · Call · 7 days a week
§  Platform Usage & Account Policies
By purchasing access and using ECUX, you agree to the following terms
Section 1
Single-User License
Your ECUX account is licensed to one (1) named individual only. Login credentials are personal and non-transferable. Sharing, selling, lending, or distributing account access to any third party is strictly prohibited. One active session is permitted at a time. ECUX reserves the right to enforce this policy through automated session monitoring.
Section 2
Account Enforcement
ECUX actively monitors for concurrent sessions, suspicious access patterns, and credential sharing. Upon detection of a policy violation, ECUX may automatically restrict, suspend, or terminate account access. Manual review may occur at ECUX's discretion. Reinstatement, if any, is granted solely at the discretion of ECUX administration.
Section 3
All Sales Final & No Refund Policy
All purchases — including subscriptions, credit packs, and digital services — are final upon activation or delivery. No refunds are issued for used or unused credits, active or expired subscription periods, or accounts suspended or terminated due to policy violations. ECUX may, but is not obligated to, make exceptions in cases of verified technical error, at its sole discretion.
Section 4
Payment & Access Activation
Access to ECUX is granted only after payment is received and verified. Users must include the required identifying note when submitting payment via Zelle. Incorrect, missing, or incomplete payment information may delay activation. ECUX is not liable for delays caused by user error in the payment submission process. Service is deemed delivered when account credentials are issued or credits are applied.
Section 5
Platform Disclaimer & Use at Your Own Risk
ECUX is a script generation and management platform only. The user is solely responsible for verifying compatibility, legality, emissions compliance, and safety of any ECU modification. To the maximum extent permitted by law, ECUX shall not be liable for any vehicle damage, ECU failure, engine or hardware damage, data loss, regulatory violations, or consequential damages resulting from use of the platform or any output it produces.
Section 6
Hex Editor — Binary Modification Risk
The Hex Editor is a raw binary editing tool. All modifications are performed entirely at the user's own risk. ECUX shall not be liable for any damage to a vehicle, ECU, engine, or related component resulting from byte-level edits, fills, or modifications made using the Hex Editor. The user is solely responsible for verifying accuracy, compatibility, legality, and safety before applying any modified binary to a vehicle.
Section 7
Run Credit Policy
Each plan includes a monthly credit allowance (Monthly: 10, 6-Month: 15, Annual: 25, Lifetime: 40). One credit is consumed per Apply Patch, Generate Script, personal script download, Hex Editor Fill Range, or Hex Editor Download. Credits reset on the 1st of each month. Unused credits do not roll over. Overage credit packs are non-refundable. ECUX shall not be liable for business losses resulting from credit exhaustion.
Section 8
Definition of “Lifetime” Access
A “Lifetime” subscription grants access for the operational lifetime of the ECUX platform — not the biological lifetime of the purchaser. ECUX reserves the right to discontinue, restructure, or shut down the platform at any time. In such an event, a Lifetime subscription does not entitle the holder to continued access, compensation, or a refund. Purchasing a Lifetime subscription is not a guarantee of perpetual platform operation. The annual maintenance fee remains due regardless of subscription tier.
Section 9
User Output & Portability
Files generated or downloaded through ECUX — including scripts and patched binaries — may be retained and used by the user outside of the platform. ECUX retains all rights to the platform, systems, methods, algorithms, interface, script libraries, and underlying technology. User output portability does not constitute a license to the platform itself.
Section 10
Third-Party Tools & Trademark Disclaimer
ECUX may generate files compatible with third-party tools including WinOLS. WinOLS is a registered trademark of EVC electronic GmbH. ECUX is not affiliated with, endorsed by, or sponsored by EVC electronic or any other third-party software provider. Compatibility references are for informational purposes only.
Section 11
Service Availability & Force Majeure
ECUX does not guarantee uninterrupted service availability. Access may be temporarily unavailable due to maintenance, hosting issues, network outages, third-party provider disruptions, or events beyond reasonable control. ECUX shall not be liable for losses resulting from planned or unplanned service interruptions.
Section 12
Privacy & Data Use
ECUX collects and stores account, login, usage, payment-reference, and script-related data as necessary for security and platform operation. ECUX does not sell user data to third parties. Users are responsible for maintaining their own backups of critical files. Activity on the platform is monitored for security enforcement purposes.
By purchasing access and using ECUX you confirm you have read, understood, and agreed to these terms in full.  |  Single-user license — credential sharing may result in suspension without refund.  |  Credits are non-refundable and do not roll over.  |  “Lifetime” means platform lifetime, not biological lifetime.  |  Hex Editor use is entirely at your own risk.  |  All sales are final.