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Celly
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CCelly logo

Celly

nuget.org·Infrastructure

Native C# implementation of the Common Expression Language (CEL): parser, type checker, and evaluator with zero dependencies.

FreeApache-2.0
CLI
C
Celly preview
Visit nuget.org↗
⭐3.9k
stars
🍴302
forks
✓6
features
📅2017
since

Overview

6 features

In the Frameworks & SDKs space, Celly takes a focused approach. It focuses on enabling .NET developers to parse and evaluate CEL expressions natively in C# projects. It is built as an open-source project for .NET developers. Celly costs nothing to use. It runs on the command line.

Celly first shipped in 2017. Development happens publicly on GitHub with 3.9k stars and 6 commits in the last 90 days. Key capabilities include CEL parser, type checker, and expression evaluator.

  • ✓CEL parser
  • ✓Type checker
  • ✓Expression evaluator
  • ✓Zero dependencies
  • ✓.NET 8.0 support
  • ✓NuGet package

Tags

cel-implementationdotnet-libraryexpression-evaluator

Built with & integrations

AI providers
cohere
Runs on
CLI

Trust & compliance

LicenseApache-2.0
Verified signals
✓ HTTPS✓ Terms of Service✓ GitHub · ★ 3.9k✓ Active maintenance
Legal
Terms of Service →

Recent events

Latest indexed changes and source events

  1. IndexedJul 18, 10:06 AM

    Native C# CEL Implementation verified by the PulseGate indexer

    Source: PulseGate indexerOpen ↗

Frequently asked questions about Celly

What does Celly do?
Celly focuses on enabling .NET developers to parse and evaluate CEL expressions natively in C# projects. It is catalogued under Frameworks & SDKs on PulseGate.
Who is Celly for?
Celly is an open-source project built for .NET developers.
Is Celly free?
Yes — Celly is free to use.
What platforms does Celly run on?
Celly runs on the command line.
Is Celly still maintained?
PulseGate's liveness checks currently classify Celly as active. The GitHub repository shows 6 commits in the last 90 days.
What are alternatives to Celly?
Similar tools tracked by PulseGate include celq, C# Runner Playground, and Cellect AI.celqC# Runner PlaygroundCellect AI
When did Celly launch?
Celly first shipped in 2017.
Is Celly open source?
Celly has a public GitHub repository.

At a glance

Pricing
Free
Platforms
Api · Cli
Languages
English
Open source
Yes · ★ 3.9k
License
Apache-2.0
First seen
Jul 18, 2026
Activity
🟢 Active
Status
🟢 Active
Built for
.NET developers
Model
Open source
Solves
Enabling .NET developers to parse and evaluate CEL expressions natively in C# projects.

Developer

Celexpr
Community-driven
↗ GitHub

Open source

View on GitHub →
⭐ Stars
3,893
🍴 Forks
302
Open issues
86
Last commit
3w ago
Commits 90d
6
Contributors
47
Authorship
Community-driven
Default branch
master
Latest release
v0.25.2 · 3mo ago

Live coverage

Confidence
High · 95
Indexed
Jul 18, 2026
Lifecycle
Alive
Activity
Active
First seen
Jul 2026
Last seen
2w ago
Identity audit (9)
Entity ID
cmrq7cpcd01skcij8mzn03jfm
Slug
native-c-cel-implementation-nuget-org
Verification state
Indexed for public listing
Claim / listing state
Unclaimed · listed: yes
Index status
Included in index
Latest evidence snapshot
Jul 18, 2026
Timeline basis
Indexed-at chronology (no inferred launch/funding milestones).
Last updated
Jul 18, 2026
Canonical URL
https://nuget.org/packages/Celly

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