Supervertaler The Ultimate Companion Tool

AI-powered features that work alongside your CAT tool (memoQ, Trados). 4-Layer Prompt Architecture, specialized modules, and intelligent assistants. Built by translators, for translators and writers.

Qt Edition v1.1.9 - Modern Interface Tkinter Edition v3.7.7 - Stable & Feature-Rich
Source Figure 1 shows the dowel rod and...
Target Figuur 1 toont de deuvelstaaf en...
Patent Drawing - Technical Design

What is Supervertaler?

The ultimate companion tool for translators and writers

🌱

Where It Started

Supervertaler began as a simple tool: export your bilingual document from memoQ, manually copy the source column into a text file, let Supervertaler translate it using AI with custom prompts, then paste it back and reimport into memoQ.

It worked, but it was manual. Tedious. Limited.

πŸš€

Where It's Going

The new Supervertaler is now the ultimate companion toolβ€”working seamlessly alongside your CAT tool with specialized features:

  • βœ… Import bilingual files from memoQ, Trados, CafeTran
  • βœ… AI-enhance with powerful prompt architecture
  • βœ… Review and refine in grid interface
  • βœ… Export back to your CAT tool
πŸ€–

What Makes It Different

Here's what no other translation tool currently offers:

4-Layer AI-Powered Prompt Architecture

Not only can you create, store, and manage translation promptsβ€”Supervertaler includes an AI-powered Prompt Assistant that generates those prompts automatically based on your document. Plus specialized modules like PDF Rescue (AI OCR), TMX Editor, and Universal Lookup.

πŸ’­

The Vision

Imagine this conversation:

Supervertaler: "Hmm, what kind of document are you translating?"
Supervertaler: "I see. Well, in that case, I recommend you use the following:"
  • ✨ System prompt (domain-specific strategy)
  • ✨ Custom instructions (project-specific rules)
Supervertaler: "Please allow me to create them for youβ€”and then use them to actually translate your project, while you sit back and make tea." β˜•

That's the future. And it's almost here.

Built by a translator, for translators.

Open source, transparent, and designed to make AI-powered translation actually useful.

πŸ‡³πŸ‡± Supervertaler = Dutch for "super translator" (because straightforward names are the best kind)

🎯 The 4-Layer Prompt Architecture

How Supervertaler Achieves Maximum Translation Precision
A unique, layered approach that no other translation tool offers

1

βš™οΈ Layer 1: System Prompts

Always included - The Foundation

Hardcoded infrastructure prompts that always run. Contains critical instructions for:

  • πŸ”§ CAT tool tag preservation (memoQ, Trados, CafeTran)
  • πŸ“ Formatting rules and output standards
  • 🌍 Language-specific conventions (numbers, dates, typography)
  • βœ… UICONTROL tag handling
✨ Unique to Supervertaler: Fully editable by usersβ€”transparency and control over your translation infrastructure.
2

🎯 Layer 2: Domain Prompts

Optional - Domain Expertise

Domain-specific translation strategies. Add specialized knowledge for different fields:

  • βš–οΈ Legal translation (contracts, patents, regulations)
  • πŸ₯ Medical & pharmaceutical terminology
  • πŸ’Ό Financial & business documents
  • πŸ”¬ Technical & engineering specifications
  • πŸ“š And moreβ€”create your own domain specialists
πŸ“š Library Included: Pre-built prompts for common domains, easily customizable.
3

πŸ“‹ Layer 3: Project Prompts

Optional - Project-Specific Rules

Client-specific or project-specific instructions. Tailor translations to exact requirements:

  • πŸ‘€ Client terminology preferences
  • πŸ“ Project-specific style requirements
  • 🎯 Target audience specifications
  • πŸ“Œ Special formatting or branding rules
πŸ”„ Per-Project: Save and reuse project prompts across similar assignments.
4

🎨 Layer 4: Style Guides

Optional - Language-Specific Formatting

Language-specific formatting rules and typography guidelines. Perfect your output:

  • πŸ”’ Number formatting (decimals, thousands separators)
  • πŸ“… Date and time formats
  • ✏️ Typography rules (quotation marks, dashes)
  • 🌐 Locale-specific conventions
πŸ“š Built-in Library: Style guides for major languages included, fully customizable.
✨

πŸ€– Prompt Assistant

AI-Powered Refinement

This is uniqueβ€”no other tool offers this: Use AI to refine your prompts. Simply describe what you want in natural language, and the Prompt Assistant modifies your prompts accordingly.

  • "Make the tone more formal" β†’ Automatically adjusts all layers
  • "Add emphasis on consistency" β†’ Refines terminology handling
  • "Simplify the language" β†’ Modifies style guidelines
🌟 Revolutionary: Learn and improve prompts using natural languageβ€”no prompt engineering expertise required.

πŸš€ How It All Works Together

The Complete Context-Aware System

The 4-Layer Prompt Architecture works seamlessly with Supervertaler's multi-context system. When you translate, the AI receives:

πŸ“„ Full Document Context

Every sentence translated with awareness of the entire document

🎯 Layered Prompts

All 4 layers combined into a single, powerful instruction set

πŸ–ΌοΈ Figures & Images

Visual context for technical documents (GPT-4 Vision, Claude, Gemini)

πŸ’Ύ Translation Memories

Fuzzy matching with your existing translations

🏷️ Termbases

Glossary integration for consistency

πŸ“ AI Summaries

Document summaries for better context understanding

πŸ’‘ Why This Matters

Most translation tools send simple, static prompts to AI. Supervertaler sends intelligent, layered instructions that adapt to:

  • βœ… Your document type (medical, legal, technical)
  • βœ… Your specific project requirements
  • βœ… Your target language formatting rules
  • βœ… Full document context (not just isolated sentences)

🎯 Result: More accurate, context-aware translations that require less post-editing.

Powerful Features

Everything you need for professional translation work

πŸ–Ό

Image Context (Multimodal AI)

Automatically includes images when translating technical documents. Supports GPT-4 Vision, Claude Vision, and Gemini Vision.

  • Auto-detects figure references
  • Visual context for technical translations
  • Project persistence
πŸ€–

Multiple AI Providers

Choose from the best AI models for your translation needs.

  • OpenAI GPT-4 & GPT-4 Turbo
  • Anthropic Claude 3.5 Sonnet
  • Google Gemini 1.5 Pro/Flash
πŸ’Ύ

Translation Memory

Fuzzy matching with TMX import/export. Never translate the same sentence twice.

  • TM matches during translation
  • TMX format support
  • Customizable threshold
🎯

4-Layer Prompt Architecture

Revolutionary layered prompt system: System Prompts (always included), Domain Prompts, Project Prompts, Style Guides, plus AI-powered Prompt Assistant. Learn more β†’ v1.1.3-Qt

  • βš™οΈ Layer 1: System Prompts (CAT tags, formatting)
  • 🎯 Layer 2: Domain Prompts (medical, legal, etc.)
  • πŸ“‹ Layer 3: Project Prompts (client-specific)
  • 🎨 Layer 4: Style Guides (language formatting)
  • πŸ€– Prompt Assistant (AI refinement - unique!)
πŸ“Š

Bilingual Review Interface

Grid, List, and Document views for reviewing AI translations. memoQ-style UI.

  • Status tracking (βœ—/~/βœ“/βœ“βœ“/πŸ”’)
  • Multi-selection (Ctrl/Shift)
  • Grid pagination (10x faster)
πŸ”„

CAT Tool Integration

Import/export bilingual tables from memoQ, CafeTran, and Trados Studio.

  • memoQ DOCX support
  • CafeTran pipe formatting
  • Trados bilingual tables
πŸ“„

PDF Rescue (AI OCR)

Transform badly-formatted PDFs into clean, editable documents with GPT-4 Vision OCR.

  • One-click PDF import
  • Smart redaction/stamp handling
  • Professional DOCX export
πŸ”„

Flexible Import/Export

Work with DOCX, TXT, TSV, TMX, XLIFF, and Excel formats.

  • Monolingual TXT auto-segmentation
  • Supervertaler project data (DOCX/TSV)
  • Session reports (MD/HTML)
⚑

Performance Optimised

Grid pagination for instant loading. Handle thousands of segments smoothly.

  • 50 segments per page
  • 10x faster than full grid
  • Responsive UI
🎨

Modern Interface

Clean, professional UI with semantic colour coding and intuitive navigation.

  • Start Screen with project management
  • Three view modes
  • Custom tab overflow
🧩

Text Repair Tool

Fix encoding issues, mojibake, and text corruption with AI-powered detection and repair. v3.7.7

  • Auto-detect encoding problems
  • Smart repair suggestions
  • Batch processing support
  • Standalone or embedded mode
🎨

Style Guide Library

Professional formatting rules and guidelines for multiple languages. Integrated into the prompt hierarchy. v3.7.7

  • Language-specific style guides
  • Numbers, dates, typography rules
  • Auto-appended to AI prompts
  • Create & edit custom guides
πŸ“

TMX Editor

Professional translation memory editor with database-backed large file support. Inspired by Heartsome TMX Editor 8. v1.1.3-Qt

  • Handle massive files (1GB+) with SQLite backend
  • Dual loading modes: RAM (fast) or Database (huge files)
  • Inline editing with real-time search highlighting
  • Heartsome-inspired three-panel layout
  • Auto mode intelligently selects best loading method
🧩

Specialised Modules

Extensible plugin system with standalone tools. Run specialised modules independently or embed them in Supervertaler.

  • Modular architecture
  • Run modules standalone or as tabs
  • Enable/disable modules in settings
  • Community-contributed tools

🧩 Specialised Modules

Powerful standalone tools that integrate seamlessly into Supervertaler

πŸ“„

PDF Rescue

AVAILABLE

Transform badly-formatted PDFs into clean, editable documents using GPT-4 Vision OCR. Perfect for rescuing locked PDFs, scanned documents, or files with complex layouts.

βœ“ AI-powered OCR with GPT-4 Vision
βœ“ Smart redaction/stamp handling
βœ“ Professional DOCX export
βœ“ Batch processing support
πŸ“– User Guide βœ“ Built-in
πŸ”§

Text Repair Tool

AVAILABLE

Fix encoding issues, mojibake, and text corruption with AI-powered detection and repair. Detect and repair common encoding problems automatically.

βœ“ Auto-detect encoding problems
βœ“ Smart repair suggestions
βœ“ Batch processing support
βœ“ Standalone or embedded mode
πŸ“– User Guide βœ“ Built-in
πŸ“

TMX Editor

AVAILABLE

Professional translation memory editor with database-backed large file support. Inspired by Heartsome TMX Editor 8. Handles massive TMX files (1GB+) efficiently with SQLite backend.

βœ“ Database-backed system (handles 1GB+ files)
βœ“ Dual loading modes: RAM or Database
βœ“ Inline editing with real-time highlighting
βœ“ Heartsome-inspired three-panel layout
βœ“ Smart auto mode selection
πŸ’» Run: python modules/tmx_editor_qt.py βœ“ Built-in
βœ…

Quality Checker

PLANNED

Post-translation quality analysis and validation. Automated checks for consistency, terminology compliance, and formatting issues.

⏳ Terminology consistency checks
⏳ Number & date format validation
⏳ Tag integrity verification
⏳ Comprehensive QA reports
πŸ—“ Coming Soon ⏳ Planned

πŸ’‘ Have an Idea for a Module?

We'd love to hear your suggestions! Request new modules or discuss ideas with the community.

πŸ’¬ Suggest a Module

πŸ— Modular Architecture

All modules are built on Supervertaler's extensible plugin system. Each module can:

  • πŸ”§ Run standalone - Use modules independently as separate tools
  • πŸ“Š Integrate seamlessly - Access modules as tabs within Supervertaler
  • βš™οΈ Enable/disable - Toggle modules on/off in settings
  • 🌍 Community-driven - Open architecture for community contributions

Get Supervertaler

Choose your edition - Qt (Modern) or Tkinter (Stable & Feature-Rich)

Which Edition?

Installation Methods (Both Editions)

πŸͺŸ Windows Executable

No Python needed. Download, extract, and run.

βœ… No Python required
βœ… All-in-one package
βœ… Windows 10+
Download ZIP

🐍 Python Package (pip)

One command installation with easy updates.

βœ… pip install supervertaler
βœ… Python 3.12+ required
βœ… Cross-platform
View on PyPI

πŸ‘¨β€πŸ’» From Source (Git)

Full source access for developers.

βœ… Full source code
βœ… Latest features
βœ… Contribute to development
Clone from GitHub

Documentation

Everything you need to get started

Screenshots

See Supervertaler in action

Supervertaler CAT Editor Interface
πŸ” Click to enlarge

Professional CAT Editor

Segment-based editing with Grid, List, and Document views. Status tracking, multi-selection, and memoQ-style UI.

Prompt Manager and Prompt Assistant
πŸ” Click to enlarge

Smart Prompt Management

System prompts, custom instructions, and AI-powered Prompt Assistant all in one place.

πŸ“Έ More screenshots coming soon! Want to contribute? Open an issue or send your screenshots.

Data Privacy & Security

Honest, transparent information about how your data is handled

πŸ”’

Your Data, Your Control

Supervertaler runs on YOUR computer. There is no Supervertaler company server. Your documents, translation memory, and glossaries never leave your machine unless you choose to send them to an AI provider for translation.

🌐

What Happens When You Use AI Translation

Reality: When you click "Translate," the text you select is sent to the LLM provider's servers (OpenAI, Anthropic, or Google). This is how AI translation worksβ€”the AI models run on their infrastructure. Supervertaler does NOT process translations locally.

Important: This means your document content temporarily reaches these providers' systems.

βœ…

Data Protection: Default Terms

  • OpenAI: Does NOT use API data for model training (by default). Enterprise plans available with zero-retention guarantees.
  • Anthropic (Claude): Does NOT use API data for training. Has explicit no-retention policy.
  • Google Generative AI: Similar policies with SOC 2 compliance available.

All providers offer data processing agreements (DPAs) and enterprise plans with enhanced privacy.

πŸ”

For Confidential / NDA Work

Recommended approach:

  • Use enterprise/business plans from your chosen LLM provider
  • Ensure Data Processing Agreement (DPA) is in place
  • Confirm zero data retention guarantee
  • Verify SOC 2 Type II compliance
  • Check GDPR/regional compliance with your provider

Most enterprise plans explicitly prohibit data use beyond your specific requests.

πŸ’Ύ

What You Control

  • βœ“ Choose which AI provider(s) to use
  • βœ“ Your API keys (never stored by Supervertaler)
  • βœ“ What gets sent: Only text you explicitly translate
  • βœ“ Which documents to work with locally vs. via AI
  • βœ“ Translation memory stays 100% local
  • βœ“ Glossaries and custom instructions stay local
πŸ”

Open Source = Transparent

Supervertaler is fully open source on GitHub. You can audit the code yourself to verify exactly how your data is handled. No hidden data collection, no telemetry, no analyticsβ€”just the code you can review.

Why Supervertaler?

🎯 Built by a Translator

Designed with real translation workflows in mind. No unnecessary complexity, just the features professionals actually need.

πŸ”“ Free & Open Source

No subscriptions, no licences, no hidden costs. Download, use, modify. Your translation work, your control.

πŸ€– AI-First Approach

Leverage cutting-edge AI models from OpenAI, Anthropic, and Google. Multiple providers for flexibility and reliability.

πŸ”„ CAT Tool Compatible

Works seamlessly with memoQ, CafeTran, and Trados Studio. Import bilingual tables, translate, export back.

πŸ“ˆ Constantly Evolving

Active development with regular updates. New features based on real translator feedback and needs.

πŸ’‘ Context-Aware & Layered Prompts

4-Layer Prompt Architecture + full document context, translation memory, figures, glossaries, and AI summaries. Multiple context sources for maximum translation precision. See how it works β†’

⚑ Three Easy Installation Methods

Windows Exe (no Python required), pip package for developers, or from source. Choose what works best for your setup in seconds.