
GitHub Sponsors
Liberapay
Patreon
Ko-fi
Google Open Source
Buy Me A Coffee
Kubernetes
Recurring funding for groups.

ipcalc
SolarWinds Virtualization Manager
calculator.net
LanCalculator
ship.sh
Subnetter
whatmask
Free, 100% client-side IP subnet and CIDR calculator. Calculate IPv4/IPv6 ranges, masks, usable hosts, AWS/Azure/GCP cloud VPC offsets, and export Terraform cidrsubnet configurations instantly.

Which is more popular?
Based on our record, Open Collective seems to be more popular. It has been mentioned 162 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | opencollective.com | devsubnet.com |
| Pricing | ||
| Company | — | Startup from India · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Open Collective yet.
DevSubnet is a 100% client-side IP subnet and CIDR calculator engineered for network engineers, DevOps specialists, and cloud architects. All calculations execute locally in the browser with zero server logging, ensuring sensitive corporate network architectures remain private. Key Features Cloud...
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
What is Open Collective?
No DevSubnet videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Open Collective and DevSubnet.
DevSubnet's answer:
Generates 1-click configuration code for Terraform, Ansible, and CloudFormation.
DevSubnet's answer:
Legacy subnet calculators are often ad-heavy, send IP parameters to remote backend servers, and assume a generic two-IP loss per subnet (network and broadcast). DevSubnet eliminates security risks by processing everything locally with zero latency, while reflecting modern cloud-native realities—such as multi-AZ cloud VPC offsets, visual recursive subnet splitting, and direct IaC syntax generation.
DevSubnet's answer:
The primary audience includes DevOps engineers, cloud architects (AWS, Azure, GCP), network administrators, and CCNA/CCNP certification students who need fast, secure, and mathematically precise IP planning without leaking infrastructure details.
DevSubnet's answer:
Network engineers and DevOps professionals frequently plan private VPCs and Kubernetes clusters, yet most available subnet tools require transmitting sensitive CIDR blocks across the wire to unknown servers. DevSubnet was built to create a privacy-first, zero-log alternative that treats subnet calculation as an essential, high-speed developer utility with modern cloud support.
DevSubnet's answer:
DevSubnet is built as a static, client-side web application utilizing modern JavaScript/TypeScript, HTML5, and Tailwind CSS. All mathematical derivations, bitwise manipulations, and CIDR calculations run locally within the user's browser engine with zero backend compute requirements.
DevSubnet's answer:
Share your experience with using Open Collective and DevSubnet. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


This bears repeating: It has been clear for a while that certain providers and services need to be regulated as utilities - Microsoft, Google, Apple, Visa, Mastercard, and soon Openai and Anthropic. Social media companies, as de-facto... - Source: Hacker News / 4 months ago
How is this different than something like https://opencollective.com (which, for example, Actual Budget uses: https://opencollective.com/actual ). - Source: Hacker News / 7 months ago
* Finances are handled by https://opencollective.com/. - Source: Hacker News / 10 months ago
Tracking DevSubnet since Sep 2026.
When comparing Open Collective and DevSubnet, you can also consider the following products.

Get paid to build what you love on GitHub
Compare GitHub Sponsors to Open Collective or DevSubnet:
IP Calculator. ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. By giving a second netmask, you can design subnets and supernets....
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Liberapay is a recurrent donations platform.
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SolarWinds Virtualization Manager is a virtual machine monitoring and troubleshooting.
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Patreon enables fans to give ongoing support to their favorite creators.
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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