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Startups14,448Programs29

14,448 startups · 29 programs

Bun

Acquired · Bun is an incredibly fast all-in-one JavaScript toolkit

WebsiteYC profile

Why it ranks

How the rank works
14signal of 100 · rising 2
  • team of 13Team size · YC's directory+5.9
  • acquiredOutcome · YC, program pages, Acquisitions+4
  • went through YCProgram · this site+4

A sum of public facts, not a judgement and not investment advice.

Same space

Developer toolsInactiveProxinoShared: javascript, infrastructureYC S11San FranciscoStartup →OtherKomiShared: toolkitAntler 2022UKStartup →AIKorsoShared: development, infrastructureYC X26IrvineStartup →AIHume AIShared: toolkitAI Grant Batch 2Startup →AIButterShared: incredibly, building, infrastructureYC W25San FranciscoStartup →
Companies next to Bun
Company
ProxinoShared: javascript, infrastructureYC S11InactiveDevtools
KomiShared: toolkitAntler 2022Not statedOther
KorsoShared: development, infrastructureYC X26ActiveAI, Devtools
Hume AIShared: toolkitAI Grant Batch 2Not statedAI
ButterShared: incredibly, building, infrastructureYC W25ActiveAI, Devtools

Also from S19 in Developer tools

All of S19
Developer toolsInactiveLunaSecAn Open Source dependency security tool that is smarter than the restYC S19SeattleStartup →Developer toolsOpenReplayOpen-source, self-hosted, session replay tool for developers.YC S19New York CityStartup →Developer toolsWasmerThe Operating System for Edge ComputingYC S19San FranciscoStartup →Developer toolsAspectBuild UI fast.YC S19San FranciscoStartup →Developer toolsAcquiredCourierThe fastest way for developers to build notifications for their app.YC S19San FranciscoStartup →Developer toolsAcquiredFeaturePeekSupercharged deployment previews for all.YC S19San FranciscoStartup →
Company
LunaSecAn Open Source dependency security tool that is smarter than the restteam of 4InactiveDevtools
OpenReplayOpen-source, self-hosted, session replay tool for developers.12.9k starsteam of 11ActiveDevtools
WasmerThe Operating System for Edge Computingteam of 11hiringActiveDevtools
AspectBuild UI fast.ActiveDevtools
CourierThe fastest way for developers to build notifications for their app.team of 35acquiredAcquiredDevtools
FeaturePeekSupercharged deployment previews for all.acquiredteam of 4AcquiredDevtools

About Bun

Bun is an incredibly fast all-in-one toolkit for building, installing, running, and testing JavaScript and TypeScript. We were born out of frustration with the fragmented, slow JavaScript ecosystem and are on a mission to make JavaScript development faster and more productive.

YC batch
S19 · Summer 2019
Status, per YC
Acquired
Category
Developer tools
Team size
13
Location
San Francisco, CA, USA
Checked
6h ago

YC tags: Developer Tools, Open Source

Bun in S19: 176 companies, 26% AI

Company profileAcquisitionsPaydaysproblemsReleasessocials

Bun: questions

Which YC batch was Bun in?

Bun was in Y Combinator's Summer 2019 batch (S19).

Is Bun still active?

Y Combinator lists Bun as acquired.

Where is Bun based?

Bun lists San Francisco, CA, USA as its location on YC's directory.