Design × Development

The single source of agreement between design and development.

Parlance creates verified contracts between designers and developers — so everyone builds from the same spec, validated against W3C standards.

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Free tier · 1 project · 5 contracts · Unlimited Viewers

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Contracts

Glossary

Standards

Integrations

Contracts+ New

ButtonAgreed

Input FieldProposed

Modal DialogDraft

Navigation BarAgreed

Integrations

✓

W3C Verified

Languages

Trusted across the design-to-development workflow

Frameworks supported

Audit tools

Interface languages

Integrations

The problem

Design handoff is broken.

Designers design one thing. Developers build another. QA catches the mismatch weeks later. The cycle repeats with every component.

Redlines get ignored

Figma annotations sit unread. Design specs get translated by guesswork. The gap between intent and implementation grows with every sprint.

No shared vocabulary

Designers say "spacing-4". Developers write "margin: 16px". QA reports "too much padding". Three people, one component, zero agreement.

Accessibility is an afterthought

WCAG compliance is checked at the end, not built in from the start. Failures are caught in production, not in the contract.

How it works

Parlance fixes this with contracts.

Define

Create component contracts that specify exactly what a component is: its props, states, variants, accessibility requirements, and design tokens. One agreement. Both sides sign off.

Validate

Every contract is verified against W3C standards — WCAG 2.2, WAI-ARIA 1.2, HTML5, CSS. Compliance isn't optional. It's built into the contract itself, not bolted on at the end.

Reconcile

Compare what was designed against what was built. Parlance audits your Figma files, your code, and your live site — and tells you exactly where they diverge.

Who it's for

Built for every role in the team.

Designers

Define your intent precisely. Push design tokens from Figma, set accessibility requirements, and know that developers are building exactly what you specified.

Developers

Query contracts from your IDE. Get glossary autocomplete, validate components against specs, and never guess what the designer meant.

QA engineers

Audit live sites against contracts. Catch divergences between design and production automatically, with WCAG compliance built into every check.

Product managers

Track contract status across projects. See which components are agreed, which are divergent, and where the team needs alignment.

Integrations

One platform. Every tool in your workflow.

Parlance connects design tools, editors, and browsers — without context switching.

Design time

Figma plugin

Audit accessibility and validate contracts while you design

Code time

VS Code · Cursor · MCP

Query contracts from your editor and AI assistant

Production

Browser extension

Audit live sites against contracts. Catch runtime divergences

Platform

Parlance dashboard

Track all contracts, compliance, and team alignment

View all integrations

Standards engine

W3C compliance isn't a feature. It's the foundation.

Every contract is validated against actual W3C specifications. This isn't a linter — it's a standards engine that ensures accessibility and semantic correctness are built into the contract itself.

Learn about the standards engine

WCAG 2.2

Web Content Accessibility Guidelines — Level A, AA, AAA

WAI-ARIA 1.2

Accessible Rich Internet Applications specification

HTML5

Semantic markup and structural correctness

CSS

Cascade, specificity, and computed value validation

Start building contracts today.

Free tier includes 1 project, 5 contracts, and unlimited viewers. No credit card required.

Get started free