Astah UML

Astah UML

Change Vision, Inc.
BaseRT

BaseRT

Base Compute
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+

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About

Astah UML is a UML 2.x diagramming tool for software design, developed by Change Vision, Inc. It covers the core UML diagrams, including class, use case, sequence, activity, state machine, component, and deployment diagrams, plus mind maps. Astah creates models rather than drawings: when you change a model element, every diagram that uses it is updated, so your design stays consistent. AI features include AI Chat Copilot and AI-assisted code reverse engineering, which use your own API key for OpenAI, Azure OpenAI, Claude, Gemini, or an OpenAI-compatible service. A local MCP server lets external AI agents work with your Astah models. Conventional reverse engineering of Java, C#, and C++ code is also included. Astah UML runs on Windows, macOS, and Linux with a bundled Java runtime. A free license is available for students, and a 20-day free trial is available. Latest version: 12.0 (released July 15, 2026).

About

BaseRT is a high-performance LLM inference runtime for Apple Silicon that lets developers pull models from Hugging Face, chat with them locally, or serve an OpenAI-compatible API from one CLI. Accelerated by hand-written Metal kernels, it is designed to deliver fast prefill and decode performance on M-series Macs, with published benchmarks showing up to 6.4× faster prefill than llama.cpp, 3.9× faster than MLX, and up to 1.33× faster decode. The basert CLI handles model downloading, conversion, interactive chat, serving, completion, benchmarking, inspection, and bundle signing. Its server supports chat, completions, embeddings, transcription, tool calls, continuous batching, paged KV caching, and prefix caching, while supported models can process text, vision, and audio. BaseRT uses its own .base model format with Q2–Q8 affine quantization, optional AWQ calibration, and signed bundles, and can convert GGUF, Hugging Face, and MLX checkpoints.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Supported
Linux Not Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Software developers, students, and teams who create UML diagrams for software design

Audience

AI infrastructure engineers and developers seeking a fast, private local model inference and an OpenAI-compatible backend for applications and coding agents

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$6.99 per month
Plans from $6.99 per month. Free license for students. 20-day free trial.
Free Version Not Supported
Free Trial Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Change Vision, Inc.
Founded: 2006
Tokyo, Japan
astah.net/products/astah-uml/

Company Information

Base Compute
Founded: 2026
Australia
www.basecompute.co/getbasert

Alternatives

Astah Professional

Astah Professional

Change Vision, Inc.

Alternatives

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Astah SysML

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SysMLv2 Editor

SysMLv2 Editor

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Astah System Safety

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DiagramGPT

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LFM2

LFM2

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Categories

Diagram Supported

Categories

AI Tools Supported

Diagram Features

Data Import / Export Supported
Drag & Drop Supported
Flowchart Not Supported
For Developers Supported
Mind Map Supported
Multi-User Collaboration Not Supported
Organizational Charting Not Supported
Templates Supported

Integrations

OpenAI Supported
Azure OpenAI Service Supported
Claude Supported
Gemini Supported
Gemma 3 Not Supported
Gemma 4 Not Supported
HTML Supported
Hugging Face Not Supported
Java Supported
Llama 3.1 Not Supported
Llama 3.2 Not Supported
Mistral AI Not Supported
Phi-3 Not Supported
Qwen3 Not Supported
Qwen3.5 Not Supported
Qwen3.6 Not Supported
Redmine Supported

Integrations

OpenAI Supported
Azure OpenAI Service Not Supported
Claude Not Supported
Gemini Not Supported
Gemma 3 Supported
Gemma 4 Supported
HTML Not Supported
Hugging Face Supported
Java Not Supported
Llama 3.1 Supported
Llama 3.2 Supported
Mistral AI Supported
Phi-3 Supported
Qwen3 Supported
Qwen3.5 Supported
Qwen3.6 Supported
Redmine Not Supported
Claim Astah UML and update features and information
Claim Astah UML and update features and information
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Claim BaseRT and update features and information