DCS Miz Editor

A Windows editor and translation workspace for DCS World .miz missions.

English · Русский · Download

MizEdit edits mission briefings, localization dictionaries, media resources, radio subtitles, scripts and selected mission structures without requiring manual ZIP/Lua work.

Important

For translation-only saves, MizEdit keeps the original mission file and l10n/DEFAULT/* byte-for-byte unchanged. New locale Lua files are written as UTF-8 without BOM, as required by DCS.

Download

Download the ready-to-run Windows x64 archive from GitHub Releases, extract it, and run MizEdit.exe.

Requirements: Windows 10/11 x64. The release is self-contained and does not require a separate .NET installation.

Showcase

Briefing and localization

Open .miz missions, switch between locales, edit briefing fields, and resolve DictKey_* values through l10n/<locale>/dictionary.

Mission pictures

Add, replace, or remove briefing and trigger pictures while preserving ResKey_* references.

Audio resources

Inspect localized audio, preview it, and replace files without changing the resource keys used by mission logic.

Trigger and route-task scan

Inspect classic triggers and nested route/task actions such as ComboTask, WrappedAction, TransmitMessage, scripts, frequencies, and target actions.

Radio subtitle editing

Edit TransmitMessage subtitles with group/task context, duration, dictionary keys, and linked audio resources.

Translation workspace

• Numbered translator-friendly export without exposing backend DictKey_* values.
• Stable batch identity, legacy marker compatibility, and partial imports.
• Block-aware Smart Paste that preserves multiline responses.
• Deduplication of identical source strings.
• Mandatory preview for clipboard imports: changed, skipped, rejected, and missing rows.
• Missing row tracking, so an unchanged row in a 1,000-line batch remains visible.
• Optional AI translation queue using Gemini or Ollama-compatible providers.
• Checkpoints for interrupted translation jobs.

Save and quality safety

Before saving, MizEdit can show:

• changed translation keys;
• archive files that will be added, replaced, or removed;
• placeholder, newline, frequency, coordinate, and length problems;
• untranslated text and inconsistent translations of duplicate originals;
• suspicious Lua/technical text changes.

Translation-only saves create or update a complete l10n/RU/dictionary with DEFAULT fallback values. They do not rewrite mission logic. Backups are created before replacing an existing .miz.

DCS mission structure

A .miz file is a ZIP archive. Important entries include:

• mission — the main Lua mission table;
• options, warehouses, theatre — mission metadata;
• l10n/<locale>/dictionary — localized DictKey_* text;
• l10n/<locale>/mapResource — ResKey_* file mapping;
• l10n/<locale>/* — audio, images, scripts, and other resources;
• KNEEBOARD/IMAGES/* — kneeboard pages.

Build from source

Requirements: Windows and .NET SDK 10.

dotnet restore .\mizedit.csproj
dotnet build .\mizedit.csproj -c Release
dotnet run --project .\mizedit.csproj

Run the focused localization regression:

dotnet run --project .\tests\GreenLine.Integration\GreenLine.Integration.csproj -c Release -- --briefing-locale-smoke

Project status

MizEdit is under active development. Always keep the automatic backup until the edited mission has been tested in DCS.