Compare files without sending them anywhere.

DeltaDesk Studio is a local, privacy-first file comparison tool for macOS and Windows. Lightning fast diffs for large text files, code, and more.

Download Free Trial

config.ts - DeltaDesk Studio

Local: config.ts

Remote: config.ts

1import { defineConfig } from 'vite';
2import react from '@vitejs/plugin-react';
3
4export default defineConfig({
5 plugins: [react()],
6 server: {
7 port: 3000,
8 open: false,
9 },
10 build: {
11 sourcemap: false
12 }
13});

1import { defineConfig } from 'vite';
2import react from '@vitejs/plugin-react';
3
4export default defineConfig({
5 plugins: [react()],
6 server: {
7 port: 5173,
8 open: true,
9 cors: true,
10 },
11 build: {
12 sourcemap: true
13 }
14});

Offline-first
Local file comparison
Fast large-file handling
macOS + Windows
No forced account

Designed for serious work

Everything you need, nothing you don't.

Text/code comparison

Line-by-line semantic diffing for any text or source code format.

Editable side-by-side panes

Fix typos directly in the diff without switching back to your editor.

Word and character-level

Spot exactly what changed, even if it's just a single comma.

Merge changes left or right

Easily accept or reject changes with a single click.

Recent history

Jump back to previous comparisons instantly.

Export reports

Generate HTML or PDF diff reports to share with clients.

Large-file optimized

No freezing or crashing when comparing gigabyte-sized logs.

Syntax highlighting

Built-in language support for a readable diff experience.

Your files should not need a round trip to the cloud.

DeltaDesk Studio's core runs entirely locally. We don't upload your source code, logs, or confidential documents. Cloud and AI features are strictly opt-in, so you stay in complete control of your data.

Built for professionals

Developers

Compare code, config files, and logs locally without uploading sensitive IP.

Writers & Editors

Easily compare drafts and track manuscript changes offline.

Legal & Business

Review contracts, compliance reports, and strict confidential documents securely.

Operations

Verify data exports, CSVs, and folder hierarchies with massive file sizes.

Simple, transparent pricing

Start comparing files instantly with our 14-day free trial.

Free Trial

Fully functional 14-day trial. Test drive every feature before buying.

Free

Desktop License

Popular

One-time purchase for individuals. Runs offline forever.

$6.99 USD

Team License

Volume licensing and centralized deployment for organizations.

Contact Us

Frequently Asked Questions

Does DeltaDesk Studio work offline?

Yes. Core comparison workflows run entirely offline on your local machine. No internet required.

Will it support PDF and Word?

PDF and DOCX document comparison is planned for an upcoming release.

Will files be uploaded?

No. Your files never leave your machine unless you explicitly opt-in to an optional cloud or AI feature.

Does it support Windows and macOS?

Yes, DeltaDesk Studio is natively built and optimized for both Windows and macOS platforms.

Is there a free trial?

Yes, we will offer a fully-featured free trial period before you need to purchase a license.

Will AI features be optional?

Absolutely. Any future AI-assisted summary features will be strictly 100% opt-in.

DeltaDesk Studio

Compare files with total privacy.

Download your fully functional 14-day free trial today. No account required.

Download Free Trial