OpenSpec

OpenSpec

Fission AI
+
+

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About

Crossary helps integration and migration teams turn source and target specification documents into reviewed, implementation-ready data-mapping workbooks. Upload both sides' specs — Excel, PDF, CSV, JSON, XML, XSD, SQL, or YAML and Crossary extracts a field inventory from each, then proposes a source-to-target mapping for every target field. Every proposed row shows its work: the proposed source, the mapping type, the verbatim quote from your documents it is based on, the reasoning and assumptions behind it, and the AI's self-rated confidence — a triage cue, not a guarantee. When nothing fits, Crossary abstains instead of guessing: the row becomes an honest gap with a clarifying question, because a wrong mapping is worse than an honest gap. You stay in control. Review, edit, accept, or reject each row, then run validation — a deterministic check of structure and key semantics (type compatibility, source-field references, cardinality); it is not a full correctness sign-off.

About

OpenSpec is an open-source spec-driven development framework designed to bring structure and clarity to AI-assisted coding workflows. It introduces a lightweight specification layer that helps teams define requirements before writing code. The platform organizes each change into structured artifacts such as proposals, specifications, designs, and task lists. It integrates with over 20 AI coding tools, allowing developers to use their preferred assistants while maintaining consistency. OpenSpec emphasizes an iterative and flexible approach rather than rigid development phases. Its command-based workflow enables users to propose, implement, and archive features efficiently. Overall, OpenSpec helps developers align with AI systems, reduce ambiguity, and produce more predictable and reliable outcomes.

Platforms Supported

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

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

Audience

Data Integration Engineers, Data Migration Specialists, ETL Developers, Data Architects, Integration Architects, Technical Business Analysts, ERP Implementation Consultants

Audience

Developers, product teams, and organizations using AI coding assistants who want a structured, spec-driven approach to improve clarity, collaboration, and development outcomes

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 Not Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$99/month
Free Version Not Supported
Free Trial Supported

Pricing

Free
Open source
Free Version 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 Supported
In Person Not Supported

Training

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

Company Information

Crossary
Founded: 2026
Portugal
www.crossary.com

Company Information

Fission AI
openspec.dev/

Alternatives

Alternatives

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Kiro

Kiro

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Zenflow

Zenflow

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Planlined

Planlined

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Intent

Intent

Augment Code

Categories

Data Mapping Supported

Categories

Agentic AI Supported
AI Coding Agents Supported

Integrations

Amazon Q Developer Not Supported
ArchGenerator Not Supported
Auggie CLI Not Supported
Claude Code Not Supported
Cline Not Supported
CoStrict Not Supported
Codebuddy Not Supported
Crush Not Supported
Cursor Not Supported
Factory Not Supported
Gemini CLI Not Supported
Google Antigravity Not Supported
JSON Supported
Kilo Code Not Supported
Microsoft Excel Supported
OpenCode Not Supported
Qoder Not Supported
Qwen Code Not Supported
XML Supported
YAML Supported

Integrations

Amazon Q Developer Supported
ArchGenerator Supported
Auggie CLI Supported
Claude Code Supported
Cline Supported
CoStrict Supported
Codebuddy Supported
Crush Supported
Cursor Supported
Factory Supported
Gemini CLI Supported
Google Antigravity Supported
JSON Not Supported
Kilo Code Supported
Microsoft Excel Not Supported
OpenCode Supported
Qoder Supported
Qwen Code Supported
XML Not Supported
YAML Not Supported
Claim Crossary and update features and information
Claim Crossary and update features and information
Claim OpenSpec and update features and information
Claim OpenSpec and update features and information