7 core features

Everything you need, in one platform.

The flexibility of Excel × the collaboration of cloud × the intelligence of AI. Everything for spec management, right here.

Struggling with Excel template management?
Function ListSheet 1/3
#
Function
Description
Priority
1
User Auth
Login/Register/Password reset
High
2
Dashboard
Overview metrics and KPIs
High
3
Inventory
Stock management with barcode
Mid
4
Reports
Monthly/yearly analytics export
Low
5
|

Familiar spreadsheet-style editing

Edit specifications in your browser with cell editing, copy and paste, and familiar spreadsheet interactions.

TemplatesStructured specification formats

Cell editing

Tab navigation, copy-paste, Undo/Redo — all supported

Templates

Specification templates from requirements to detailed design

Filter & search

Fast filtering and full-text search across large datasets

Excel import

Import existing Excel specs as-is

Still emailing Excel files back and forth for review?

The whole team, editing specs simultaneously

No more email attachments. Your entire team edits the same spec in the browser, in real-time. Changes are reflected instantly on everyone's screen.

Email attachmentsShared workspace
Separate filesShared specification
Manual coordinationReal-time editing
3 online
UC-001User authentication and session management
UC-002Dashboard data aggregation
UC-003Report generation and export
@Tanaka

"Should we add rate limiting here?"

Live cursors

See who is editing where at a glance

Cell comments

Comment directly on cells with threaded discussions

@mention notifications

Tag team members and notify them instantly

Change history

Every change auto-recorded — who, when, what

Writing spec content from scratch every time?
FunctionPayment processingCategoryTransaction
AI Suggestion

Description:

Handles credit card, bank transfer, and e-money payment methods. Integrates with payment gateway API for authorization, capture, and refund operations.

Priority: High

AI suggests the actual content of your specs

Just type "User management" and AI suggests functional requirements, non-functional requirements, and screen items. Prevents gaps in your design.

AI only suggests. The final decision is always made by humans.

Auto-suggest mode

Real-time suggestions as you type

Trigger:Detects cell input content
Target:Related empty cells
Action:One-click apply or dismiss

Row-level mode

Detailed suggestions based on row context

Trigger:Explicitly requested by user
Target:Empty cells in selected row
Action:Preview before applying

Batch generation mode

Generate entire empty sheets at once

Trigger:Empty sheet or user request
Target:Entire sheet
Action:Specify count and generate in bulk
Spending 3 days on specs for every new project?

From an idea to a specification draft.

Describe your project concept and generate structured drafts from requirements to detailed design. Review the output with your team.

1
Describe your idea
2
AI analyzes & structures
3
Specs are ready!

Project description

"Inventory management system for SMBs with barcode scanning, auto-ordering, and reporting."

Requirements
Functions
Screens
API
DB
NFR
External
Batch
Reports

Generation time varies by project and AI provider.

Export to Excel & Markdown
Freely edit and customize after generation
Review and improve with your team
Learns from existing project context
Tracking review comments in Excel comments and email?
Approvedv1.2
Suzuki - 03/12
In Reviewv1.3
Tanaka - 03/14
Draftv1.4
Sato - 03/14
A
B
C
2/3 approved

Structured workflow to ensure design quality

From review request to approval, everything happens in DXSpec. Issue tracking, diff highlighting, and complete approval records ensure quality control.

ReviewKeep feedback with the specification

Multi-stage approval

Dept → PMO → QA multi-level approval flow

Diff highlighting

See changes highlighted in color at a glance

Complete audit trail

Who approved what, when — audit-ready

Does "spec_v3_final_FINAL_tanaka_edit.xlsx" ring a bell?

Version management by filename is over.

Every change is automatically recorded. Roll back to any past version anytime. Diff view shows exactly what changed at a glance.

v3.2Current
Mar 14

API design added

Tanaka

v3.1
Mar 12

Review feedback applied

Sato

v3.0
Mar 10

Approved

Suzuki (Director)

v2.0
Feb 28

Major revision

Tanaka

Auto-recording

Every save automatically creates a version

Side-by-side diff

Compare any two versions side by side

Rollback

Restore any past version with one click

Managing project access with file server folder permissions?
C
Acme CorpOwner
W
Development DeptAdmin
P
Inventory System
AdminEditorViewer
P
CRM Renewal
W
QA TeamMember

Flexible permissions that match your org structure

Company → Workspace → Project 3-tier hierarchy with granular access control. Permissions from higher levels are automatically inherited.

Membership

Manage organization, workspace, and project members

Roles

Assign permissions for viewing and editing

Invitations

Invite team members to collaborate

Start with the Free plan.

Free plan availableAI on paid plansMonthly or annual billing