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Damon Chen vs Tony Dinh

Products, revenue & stack compared side by side.

Damon Chen avatar

Damon Chen

Ex-Cisco engineer who built Testimonial.to and grew acquired PDF.ai into a top AI PDF tool

Tony Dinh avatar

Tony Dinh

Vietnamese indie hacker behind TypingMind, DevUtils, and exits Black Magic and Xnapper

@tdinh_me

Damon Chen vs Tony Dinh at a glance

Both Damon Chen and Tony Dinh are bootstrapped, build in public, have sold at least one product and are serial makers. They overlap in SaaS Founders and AI Builders. Both started building independently in 2020. Damon Chen has 8 products listed on IndieMakerList vs Tony Dinh's 6. Damon has sold 1 product and Tony 2. On revenue, Damon self-reports $1.3M ARR (Testimonial.to + PDF.ai) (as of 2024) and Tony $142K/mo (TypingMind + DevUtils) (as of 2026). On X, Damon has about 99K followers and Tony about 205K.

Side-by-side comparison

Based in
Damon Chen: San Jose, United States
Tony Dinh: —
Started
Damon Chen: 2020 (6 yrs indie)
Tony Dinh: 2020 (6 yrs indie)
Revenue (self-reported)
Damon Chen: $1.3M ARR (Testimonial.to + PDF.ai)self-reported, as of 2024 · source for Damon Chen's revenue
Tony Dinh: $142K/mo (TypingMind + DevUtils)self-reported, as of 2026 · source for Tony Dinh's revenue
Products listed
Damon Chen: 8
Tony Dinh: 6
Product status
Damon Chen: 7 active · 1 acquired
Tony Dinh: 4 active · 2 acquired
X followers
Damon Chen: 99K
Tony Dinh: 205K
Style
Damon Chen: bootstrappedbuilds in publicexitedserial maker
Tony Dinh: solobootstrappedbuilds in publicexitedserial maker
Courses & resources
Damon Chen: 1
Tony Dinh: 2

Revenue figures are self-reported by each maker and not audited; dates and scope differ. Highlighted categories are shared by both.

Top products

Damon Chen avatarDamon Chen

Testimonial.to logo

Testimonial.to

testimonial.to

Collect, manage and embed video and text testimonials from customers.

$800K ARR
PDF.ai logo

PDF.ai

pdf.ai

AI tool to chat with, analyze and work with PDF documents; acquired by Damon for about $20K and grown from there.

$500K ARR
Chat.sh logo

Chat.sh

chat.sh

Help center that answers customer questions directly, citing the pages it used.

PDFgen logo

PDFgen

pdfgen.com

Generate PDF documents with AI.

See all 8 products by Damon Chen →

Tony Dinh avatarTony Dinh

TypingMind logo

TypingMind

typingmind.com

Chat frontend for ChatGPT, Claude, Gemini and other LLMs, with agents, plugins and local data, sold as a lifetime license plus team plans.

$137K/mo
DevUtils logo

DevUtils

devutils.com

Offline all-in-one toolbox of developer utilities for macOS.

$5K/mo
Black Magic logo

Black Magic

blackmagic.so

acquired

Browser extension and tools for Twitter power users that peaked around $14K MRR.

Xnapper logo

Xnapper

xnapper.com

acquired

Mac screenshot tool that makes screenshots look polished; sold for $150K.

See all 6 products by Tony Dinh →

Tech stack

No tools in common in their publicly listed stacks. See the indie maker tech stack.

Damon Chen avatarDamon Chen

No stack shared publicly.

Tony Dinh avatarTony Dinh

No stack shared publicly.

How they build

Damon Chen avatarDamon Chen

  • Start small and cheap, validate with early lifetime deals, then reinvest.
  • Buying a promising product can beat building from scratch.
  • Premium, memorable domains are a real growth lever.
  • Listen to support tickets; they reveal what to build next.

Tony Dinh avatarTony Dinh

  • Build software you personally want to use.
  • Decouple income from hours by selling products instead of time.
  • Run several small products so one shock does not wipe you out.
  • Share numbers and lessons openly to build an audience while you build.

Learn from Damon and Tony

Damon Chen vs Tony Dinh FAQ

Who makes more money, Damon Chen or Tony Dinh?

Damon Chen self-reports $1.3M ARR (Testimonial.to + PDF.ai) (as of 2024) and Tony Dinh self-reports $142K/mo (TypingMind + DevUtils) (as of 2026). By these self-reported figures, Tony Dinh's reported monthly revenue is higher. Figures are unaudited and may cover different periods or businesses, so treat them as rough indicators.

Who has built more products, Damon Chen or Tony Dinh?

Damon Chen has 8 products listed (including Testimonial.to, PDF.ai and Chat.sh); Tony Dinh has 6 products listed (including TypingMind, DevUtils and Black Magic).

Where are Damon Chen and Tony Dinh based?

Damon Chen: San Jose, United States. Tony Dinh: not listed.

Who has been an indie maker longer, Damon Chen or Tony Dinh?

Damon Chen started in 2020 (6 years indie); Tony Dinh started in 2020 (6 years indie).

Are Damon Chen and Tony Dinh bootstrapped?

Yes, both are listed as bootstrapped founders on IndieMakerList.

Full profiles

Read the full story, timeline and links on Damon Chen's profile and Tony Dinh's profile.

More comparisons