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Description

Astah UML gives software teams and students a focused tool for UML 2.x modeling. Class, use case, sequence, activity, state machine, component, and deployment diagrams are all available, together with mind maps for early brainstorming. Every diagram is a view of a shared model, so renaming a class or changing a relationship updates it everywhere it appears. For AI-assisted work, Astah UML offers AI Chat Copilot and AI-assisted code reverse engineering, both of which connect to OpenAI, Azure OpenAI, Claude, Gemini, or any OpenAI-compatible endpoint through your own API key. A local MCP server lets external AI agents read and work with your models, and conventional reverse engineering turns existing Java, C#, and C++ code into diagrams without an AI service. Astah UML runs locally on Windows, macOS, and Linux. Developer: Change Vision, Inc. Current version: 12.0 (July 2026). Students can use it free of charge, and a 20-day trial is available for everyone else.

Description

Tagsight serves as the authoritative repository for engineering data, efficiently processing your entire set of drawings to compile essential elements such as the instrument index, I/O list, equipment list, line list, and valve list necessary for project execution. It can interpret various documents including P&IDs, single-line diagrams, loop diagrams, datasheets, and cable and junction-box schedules, regardless of whether they are scanned sheets or CAD-exported PDFs. Each tag is systematically categorized according to the standards already utilized in the drawings, which may include ISA 5.1, KKS, IEC 81346, NORSOK, DIN 19227, or specific conventions set by the operating house. An engineer meticulously verifies or amends each entry before any data is finalized, ensuring that the register is thoroughly reviewed rather than taken for granted. Tagsight has the capability to export data in multiple formats including Excel, CSV, TIA Portal XML for Siemens S7, Rockwell L5X for Studio 5000, PLCCreator, DEXPI, JSON, and annotated PDF, facilitating smooth data transitions. Additionally, it offers revision comparison features to ensure that change management reviews highlight only the modifications made. A REST API and an MCP server enable seamless integration with the broader toolchain, enhancing workflows and fostering collaboration across teams. This interconnected approach not only streamlines processes but also improves accuracy and efficiency in data management.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Azure OpenAI Service Yes 
Claude Yes 
Gemini Yes 
HTML Yes 
Java Yes 
OpenAI Yes 
Redmine Yes 

Integrations

Azure OpenAI Service No 
Claude No 
Gemini No 
HTML No 
Java No 
OpenAI No 
Redmine No 

Pricing Details

$6.99 per month
Plans from $6.99 per month. Free license for students. 20-day free trial.
Free Trial Yes 
Free Version No 

Pricing Details

Tagsight offers subscription and usage based pricing.
Free Trial No 
Free Version No 

Deployment

Web-Based No 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Change Vision, Inc.

Founded

2006

Country

Tokyo, Japan

Website

astah.net/products/astah-uml/

Vendor Details

Company Name

Tagsight Technologies

Founded

2026

Country

Canada

Website

tagsight.io

Product Features

Diagram

Data Import / Export Yes 
Drag & Drop Yes 
Flowchart No 
For Developers Yes 
Mind Map Yes 
Multi-User Collaboration No 
Organizational Charting No 
Templates Yes 

Product Features

Engineering

2D Drawing Yes 
3D Modeling No 
Chemical Engineering No 
Civil Engineering No 
Collaboration Yes 
Design Analysis No 
Design Export No 
Document Management Yes 
Electrical Engineering No 
Mechanical Engineering No 
Mechatronics No 
Presentation Tools No 
Structural Engineering No 

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