Dev tools · alternatives · 2026

24 alternatives to Cr – Runs your tasks at maximum concurrency

Runs your tasks at maximum concurrency. Contribute to cirocosta/cr development by creating an account on GitHub.

Cr is a command-line tool that executes tasks with maximum concurrency. Designed for developers and system administrators who need to run multiple operations in parallel, it allows efficient task execution by… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Cr – Runs your tasks at maximum concurrency launched in 2017; newer entries below may have overtaken it.

1
Grit – a multitree-based personal task manager▲255
Multitree-based personal task manager. Contribute to climech/grit development by creating an account on GitHub.
2021 · github.com · its alternatives →
2
Witr – Explain why a process is running on your Linux system▲526
Hi HN, I built a small Linux CLI tool called witr (Why Is This Running?). The idea came from a situation most of us have hit: you log into a machine, see a process or port running, and immediately wonder why it exists, who started it, and what is keeping it alive right now. witr traces a process, service, or port back to its origin and responsibility chain and explains it in a way that’s quick to read, especially when you’re debugging under pressure. This is v0.1.0. It’s intentionally small and focused. Feedback, criticism, and edge cases are very welcome. Repo:…
Dec 2025 · github.com · its alternatives →
3GI
Going into freshman year, figured I should build an interpreter▲138
Hi all! I'm going into my freshman year, and figured that the best way to prepare for the intro to programming Racket course would be to implement my own garbage-collected, dynamically typed, functional programming language in C ;) Anyways... here's the repo: https://github.com/liam-ilan/crumb I started learning C over the summer, so I still have a whole lot to learn... Any feedback would be greatly appreciated! :D
2023 · its alternatives →
4
Xc – A Markdown Defined Task Runner▲113
Markdown defined task runner. Contribute to joerdav/xc development by creating an account on GitHub.
2023 · github.com · its alternatives →
5
Cline CLI 2.0▲297
Parallel agents & headless CI/CD in your terminal
Feb 2026 · cline.bot · its alternatives →
6
Linux tool to show progress for cp, rm, dd, etc.▲252
Linux tool to show progress for cp, mv, dd, ... (formerly known as cv) - Xfennec/progress
2014 · github.com · its alternatives →
7
A simple garbage collector for C▲192
Simple, zero-dependency garbage collection for C. Contribute to mkirchner/gc development by creating an account on GitHub.
2019 · github.com · its alternatives →
8
Run – a CLI universal code runner I built while learning Rust▲96
Hi HN — I’m learning Rust and decided to build a universal CLI for running code in many languages. The tool, Run, aims to be a single, minimal dependency utility for: running one-off snippets (from CLI flags), running files, reading and executing piped stdin, and providing language-specific REPLs that you can switch between interactively. I designed it to support both interpreted languages (Python, JS, Ruby, etc.) and compiled languages (Rust, Go, C/C++). It detects languages from flags or file extensions, can compile temporary files for compiled languages, and exposes a unified REPL…
2025 · github.com · its alternatives →
9
Runc – Compile and run C in one command▲41
compile/run for the lazy. Contribute to alcover/lacy development by creating an account on GitHub.
2020 · github.com · its alternatives →
10
Async tasks in 350 lines of C▲146
Tasks are a primitive for asynchronous programming and an alternative to working with threads directly. Instead of creating a thread, performing work, then waiting on it using synchronization primitives, you only define a unit of work and let a scheduler decide when and where to execute it. The threads that the scheduler uses are created once and reused for many tasks throughout the program's lifetime. In most cases, creating and executing a task requires not even a single syscall and is a significantly faster operation than creating a thread, resulting in lower latency. Furthermore, tasks…
2024 · github.com · its alternatives →
11
Chan – pure C implementation of Go channels▲150
Pure C implementation of Go channels. Contribute to tylertreat/chan development by creating an account on GitHub.
2014 · github.com · its alternatives →
12
minicron – a system to manage and monitor cron jobs▲31
🕰️ Monitor your cron jobs. Contribute to jamesrwhite/minicron development by creating an account on GitHub.
2014 · github.com · its alternatives →
13
Forkrun – NUMA-aware shell parallelizer (50×–400× faster than parallel)▲151
forkrun is the culmination of a 10-year-long journey focused on "how to make shell parallelization fast". What started as a standard "fork jobs in a loop" has turned into a lock-free, CAS-retry-loop-free, SIMD-accelerated, self-tuning, NUMA aware shell-based stream parallelization engine that is (mostly) a drop-in replacement for xargs -P and GNU parallel. On my 14-core/28-thread i9-7940x, forkrun achieves: * 200,000+ batch dispatches/sec (vs ~500 for GNU Parallel) * ~95–99% CPU utilization across all 28 logical cores, even when the workload is non-existant (bash no-ops / `:`)…
Mar 2026 · github.com · its alternatives →
14
Hyperfine – a command-line benchmarking tool▲126
A command-line benchmarking tool. Contribute to sharkdp/hyperfine development by creating an account on GitHub.
2018 · github.com · its alternatives →
15
Cronotion▲137
Repeated tasks for your notion with the power of cron
2022 · its alternatives →
16CI
Cron.io - Sharing a by-product. Should this be a full service?▲153
2012 · cron.io · its alternatives →
17
Pipelines – Language for scripting parrallel pipelines with Python▲69
An experimental programming language for data flow - calebwin/pipelines
2019 · github.com · its alternatives →
18
Hyperfine – a command-line benchmarking tool▲96
A command-line benchmarking tool. Contribute to sharkdp/hyperfine development by creating an account on GitHub.
2019 · github.com · its alternatives →
19CC
Codr.cc - Etherpad meets Pastebin Meets Notepad.cc: live code sharing▲135
2011 · codr.cc · its alternatives →
20
Neco – Coroutine Library for C▲145
Concurrency library for C (coroutines). Contribute to tidwall/neco development by creating an account on GitHub.
2024 · github.com · its alternatives →
21
CronTool▲123
Cron expression editor & debugger
2023 · tool.crontap.com · its alternatives →
22
Cronitor▲170
Monitor cron jobs, micro-services and almost anything else.
2017 · cronitor.io · its alternatives →
23
Crontab Guru▲66
We’re the makers of Crontab.guru and Cronitor.io, both first launched on HN about a decade ago. We wanted a secure web GUI way to manage/run our own cron jobs — so we built it and open‑sourced it! With Crontab Guru Dashboard you can: * Create, update, suspend and delete your cron jobs easily * Start a job on-demand or kill running instances that are hanging around too long * Debug jobs with a local console * Use our MCP server to integrate with coding assistants like Cursor and Claude Code to configure jobs and check health/status Feedback welcome!
2022 · crontab.guru · its alternatives →
24UC
uThreads – Concurrent User Threads in C and C++▲135
2016 · samanbarghi.com · its alternatives →

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