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Developer tools

Appjet

Y Combinator funded AppJet is an online programming tool for building simple web apps. Founded by former MIT students, AppJet intends to simplify the process of writing web applications. The applications are programmed on a web based text editor in the simple but powerful JavaScript programming language. JavaScript is used on both the server and client side. They've included several bundles of code libraries for databases and more importantly interfacing with the Facebook API. In order to effici

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #609

Y Combinator funded AppJet is an online programming tool for building simple web apps. Founded by former MIT students, AppJet intends to simplify the process of writing web applications. The applications are programmed on a web based text editor in the simple but powerful JavaScript programming language. JavaScript is used on both the server and client side. They've included several bundles of code libraries for databases and more importantly interfacing with the Facebook API. In order to effici

source
generated read
High Signal interpretation

Appjet is classified as Developer tools from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

offline extraction
Product facets
JavaScriptdatabasesAppJetweb applicationsFacebook API
mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Appjet

Developer tools · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

Lunatic

match 93

At the core of the company there is Lunatic, a runtime for developing low latency, robust and distributed networking applications. It can be used for web applications, game servers, video and voice chat, or other apps requiring low latency runtimes. Lunatic borrows many proven ideas from Go and Erlang, but also uses WebAssembly to make it easier targetable from existing languages, allowing teams to leverage already existing code and libraries.

shared extracted concepts: web applications; shared product terms: web, apps, application, but; shared product theme: developer infrastructure; same category: Developer tools; shared affiliation: Y Combinator

EnvKey

match 87

EnvKey is a developer-friendly, cross-platform, end-to-end encrypted configuration and secrets manager. It can be used to store API keys, database credentials, and other application config securely. EnvKey makes it easy to grant least-privilege access to the developers and servers that need it from a user-friendly UI. Integration takes minutes. Using EnvKey ensures that no 3rd party, including EnvKey itself, ever has access to your secrets. It takes a part of your system that used to be error-pr

shared extracted concept terms: database, application, api; shared product terms: application, used, server, includ; shared product theme: developer infrastructure; same category: Developer tools; shared affiliation: Y Combinator

Parakey

match 59

Parakey was founded in early 2006 by Blake Ross and Joe Hewitt of Mozilla/Firefox fame. Little has been revealed about what Parakey will actually do, but it has been touted as both a platform and set of applications that will merge the desktop environment with the Web. It has also been described as a Web-based operating system. Great emphasis has been placed on Parakey's potential to make tasks on the computer more intuitive for the average Joe. Parakey was acquired by Facebook on July 19, 2007.

shared extracted concept terms: web; shared product terms: web, found, application, but; shared affiliation: Y Combinator

Proxino

match 43

Proxino is a cloud platform for monitoring and debugging client-side JavaScript.

shared extracted concept terms: javascript; shared product terms: client, side, javascript; shared product theme: developer infrastructure; same category: Developer tools; shared affiliation: Y Combinator

Elemetric

match 42

Elemetric is an API service for the blockchain internet, creating a marketplace that bridges data on the internet today and data used in blockchain applications

shared extracted concept terms: application; shared product terms: api, used, application; shared product theme: developer infrastructure; same category: Developer tools

KB Labs

match 36

Specializes in building successful Facebook applications

shared extracted concept terms: facebook, application; shared product terms: facebook, application