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Polly vs duplicati

Polly and duplicati share 3 technologies: Microsoft.Extensions.Caching.Memory, Microsoft.Extensions.Logging.Console, and Microsoft.Extensions.Logging.Abstractions. Both are written in C#.

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What they share and what sets them apart

App-vNext

Polly

Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+.

C#14.3kRead on November 9, 2026, at commit 8a37f64What is Polly built with?

Only in Polly

  • System.ValueTuple
  • Microsoft.Extensions.Options
  • System.ComponentModel.Annotations
  • System.Diagnostics.DiagnosticSource

In common

duplicati

duplicati

Store securely encrypted backups in the cloud!

C#15.2kRead on November 8, 2026, at commit e071887What is duplicati built with?

Only in duplicati

  • ASP.NET Core
  • Microsoft.Data.Sqlite
  • SQLitePCLRaw.bundle_e_sqlite3
  • SQLite
  • Azure.Storage.Blobs
  • Google
  • Avalonia.Desktop
  • Avalonia
  • Avalonia.Themes.Fluent
  • Microsoft.Toolkit.Uwp.Notifications
  • Google.Apis.Auth
  • Otp.NET
  • System.Security.Principal.Windows
  • Microsoft.AspNetCore.Authentication.JwtBearer
  • Azure.Identity
  • System.IdentityModel.Tokens.Jwt
  • Handlebars.Net
  • MimeKit
  • MailKit
  • AWSSDK.Core
  • Microsoft.Extensions.Logging
  • System.Diagnostics.EventLog

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
Polly106,814 lines written379 code files
duplicati420,918 lines written1,323 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
Polly0.1% of its commits signed by AIWith GitHub Copilot
duplicati3% of its commits signed by AIWith Claude Code, Codex, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
PollyLast push November 7, 20262,845 commits14,253 stars
duplicatiLast push November 8, 202611,923 commits15,189 stars
TestsThe files that test the code, and the share of code files a test imports.
Polly325 test files81.5% of its code files have a test that imports them
duplicati464 test files30.2% of its code files have a test that imports them

Frequently asked questions

Which is bigger, Polly or duplicati?
duplicati, with 420,918 lines written; Polly has 106,814.

The proof: duplicati/duplicati's code at commit e071887

Which has more GitHub stars, Polly or duplicati?
duplicati, with 15,189 stars; Polly has 14,253.

The proof: duplicati/duplicati on GitHub

Which has more tests, Polly or duplicati?
duplicati, with 464 test files; Polly has 325.

The proof: duplicati/duplicati's code at commit e071887

Which was updated more recently, Polly or duplicati?
duplicati: its last push was on November 8, 2026, and Polly's on November 7, 2026.

The proof: duplicati/duplicati's commits on GitHub

Which has more commits signed by AI, Polly or duplicati?
duplicati: an AI signed 3% of its commits, with Claude Code, Codex, and GitHub Copilot; in Polly, 0.1%.

The proof: the commits each tool signed in duplicati/duplicati

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