Sheet 01Desktop app for editing ECU & TCU filesAvailable for Windows

MapEngine - Desktop app for editing ECU & TCU files

Load an ECU or TCU file and MapEngine finds what is hidden in it. A simple change takes a few clicks, but there is much more behind it: AI Similarity with a list of proposals to review, OFFSET and ALIGN for matching different reads, advanced editing with local minima and maxima, your own map packs, a dual HEX editor and much more. The program runs locally, not in a browser: editing and the 2D, 3D and HEX views run on your own computer, and only map recognition uses my server.

See pricing What is MapEngine?

Controller families: 370+
Definitions: 438,000+
Access period: 365 days

**Fig. 1**Full product walkthrough: map table, 3D view, Compare 2D with ALIGN, HEX and DTC Lookup. English narration.YouTube (Google). Clicking play connects to Google and shares your IP address and browser details.

Architecture: local program

You keep the program and the processing. I supply the tools.

MapEngine is a native Windows program: the .exe runs on your computer, not in a browser tab. The original (ORI) stays read-only, and editing, interpolation, the 2D and 3D views, HEX and OFFSET all run locally, on your own files. I look after the library, the updates and backward compatibility.

Native EXE, not a browser editor
ORI read-only, you do the saving
Editing, 2D, 3D, HEX and OFFSET run locally

Map recognition uses my server; an uploaded file is deleted when the analysis finishes.

Requirements and file privacy →

MapEngine features

Capabilities

01Map matchingMatches calibration files against reference patterns, with an adjustable similarity threshold.
02AI Similarity thresholdLower it to explore more proposals; it can also add less precise matches.
03Fast editingFast value editing, interpolation and effective data copying.
04Compare 2DOriginal and modified data on one graph, with range selection and a live inspector.
05Self-adjusting 2D axisThe Y axis fits itself to the file data in the 2D view.
063D engineA smooth 3D view with a flexible choice of view.
07Dual HEX editorOriginal and modified bytes side by side, with differences highlighted.
08Your own map packsBuild map packs and copy profiles of modified values; check file and format compatibility first.
09Search in the fileFind by words or digits, which makes working in 2D much easier.
10Keyboard controlExtensive shortcuts that noticeably speed up your work.
11Intelligent OFFSET and ALIGNOFFSET aligns compatible reads of the same controller with a fixed offset. The two-file, dynamic ALIGN mode matches fragments, with a preview to verify.
12DTC preview (beta)Decoded codes, their names and whether they are active in the file, for supported patterns.

Map matching, OFFSET, ALIGN and the DTC preview give proposals and auxiliary readings. Results always require your verification.

All features →

Real screenshots from the program

Preview

Compare 2D in ALIGN mode: ORI and MOD strips, a cyan original and a yellow modified curve, a toolbox with working offset and areas to send, the Live Data Inspector and a range tool on the right. — **Fig. 2**Compare 2D with ALIGN: slide the modified file against the original, review the areas to send and apply them to MOD only.

Fig. 3Map Search: library proposals with confidence, score and dimensions. Every proposal needs a review before editing.

Map Table: Map Studio with the tuner mappack list on the left and a colour-coded 16×16 ignition-advance grid with RPM and load axes, outlined changed cells, and the value inspector and edit actions on the right. — **Fig. 4**Map Table: physical values, axes and changed cells. Edit a selection or restore the original cell.

Surface 3D editor: a colour-coded ignition-advance surface with the original wireframe, nodes and RPM and load axes; the 3D Workbench offers increments, rotation, height and tilt. — **Fig. 5**Surface 3D: original and modified data together. Select nodes and change them with increments.

HEX view: original and modified bytes and ASCII text side by side, highlighted differences, a file-position strip, navigation between changes, search and bookmarks. — **Fig. 6**HEX view: original and modified bytes side by side, with highlighted differences and a jump to the next change.

F6 DTC Lookup: a read-only beta table of decoded codes with type, HEX, records, description, recognition, confidence, state and internal ID. — **Fig. 7**DTC Lookup (beta): a read-only preview of decoded codes with descriptions and confidence. MapEngine does not disable DTC or write DTC changes.

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Pricing and access

Pricing

Your first purchase and access continuation are separate offers. Each includes 365 days of access.

First purchase of MapEngine
€299
net · one-time payment for 365 days
Equivalent to approximately €24.92 net per month^*
Access continuation
€249
net · one-time payment for 365 days
Equivalent to approximately €20.75 net per month^*
Customers who pay for the first purchase by 31 December 2026 keep EUR 249 net for every continuation.

* Monthly equivalent of the net price is the 365-day price divided by 12, rounded to euro cents. You pay once, not monthly. Applicable tax is added at checkout before payment.

Create an account in the customer portal to buy MapEngine.

See pricing and access terms

Frequently asked questions →