Built for curious digital worlds

Small tools.
Big adventures.

From clearer marketplace prices to your next Infinity Nikki banner, CompanionGrounds builds useful tools for the digital worlds you love. Made with privacy and community in mind.

3
browser companions
21
interface languages
0
personal data collected
Free to use Built independently Privacy first Community shaped
Choose your companion

Your favorite platforms,
only more useful.

Each companion fits naturally into the site you already use. Prices make sense, useful context appears where you need it, and your data stays yours.

Booth Companion icon
For BOOTH.pm

Booth Companion

Turn BOOTH into a clearer, smarter storefront for VRChat avatars, outfits, and creator assets.

  • Local currency
  • Avatar compatibility
  • Library search
  • Price history
Smarter shopping, right on BOOTH
Booth Companion product preview
Jinxxy Companion icon
For Jinxxy

Jinxxy Companion

Discover compatible assets faster and understand every listing without leaving the Jinxxy marketplace.

  • Local currency
  • Compatibility
  • Listing insights
  • Price history
Find the right asset faster
Jinxxy Companion product preview
VeeRadar Companion icon
For VeeRadar

VeeRadar Companion

Bring useful pricing context, variant ranges, and wishlist totals to your VeeRadar browsing.

  • Local currency
  • Variant ranges
  • Wishlist totals
  • Marketplace badges
More context for every find
VeeRadar Companion product preview
For Steam

Steam Spending Companion

See your spending, savings and refunds in a clear dashboard on Steam Purchase History.

  • Spending overview
  • Purchase trends
  • Wallet & Market
Your history. Clearly.
Steam Spending Companion preview
For Infinity Nikki

Infinity Nikki
Banner Planner

See what your pulls could bring. Add your Diamonds, Crystals, and owned pieces to explore your outfit chances before you pull.

  • Outfit completion
  • Full evolution
  • Pull matrix

No account needed · Your plan stays in your browser

Infinity Nikki Banner Planner showing banner selection, Diamonds and Crystals, and owned outfit pieces
A clearer view of your next banner
Our common ground

Built around people,
not profiles.

We build the things we want to use: helpful, focused, and respectful of the communities they live in.

01

Private by design

Your account and shopping data stay in your browser. We do not collect or sell personal data.

02

Useful by default

No feature maze. The right information appears where it can actually help.

03

Community shaped

Feedback from creators and users helps decide what we build next.

Selected past work

Things we’ve helped
bring to life.

Past project credit

Lumynaria.de

CompanionGrounds developed and hosted the Lumynaria website from August 2025 to March 2026. During that period, the experience was warmly received by its community.

August 2025 March 2026 View archived websiteMarch 2026 snapshot
Lumynaria artwork
Our wider work

From useful tools
to memorable places.

Our work stretches beyond browser companions: past website projects, playful experiments, and practical resources shaped for digital communities.

Shop smarter marketplace tools Play community guessing games Learn clear, useful guides
Take a play break

Made for the
“one more round” crowd.

Daily guessing games built around worlds and stories we already love.

ROTMGdle game artwork
Daily Realm challenge

ROTMGdle

Guess your way through Realm of the Mad God.

Play today's round
Field notes

Clear answers for
digital shoppers.

Browse all guides
Behind the grounds

Two people.
Plenty of ideas.

CompanionGrounds is an independent project built with care, curiosity, and a close connection to the communities our tools serve.

Skulux avatar

Skulux

Development & Product

Krybto avatar

Krybto

Community & Creative

Come say hello

There’s room around
the campfire.

Share feedback, suggest features, or just meet other people exploring the same digital worlds.