Being able to filter SaaS companies by their tech stack, say, those using Django, Ruby on Rails, or Next.js, isn’t just a niche curiosity; it’s a game-changing insight for several types of professionals who rely on accurate, actionable tech data.

For Recruiters and Dev Shops

Recruitment agencies and dev shops often specialize in specific frameworks or languages. If your firm focuses on Ruby on Rails or Laravel developers, targeting SaaS companies that already use these stacks can dramatically improve your outreach efficiency and client acquisition rate.

Rather than casting a broad, generic net and hoping for a hit, you’re going directly to companies that need exactly what you offer. These are teams already embedded in a particular tech ecosystem, meaning your developers can integrate faster, deliver value more quickly, and require less training, all of which are powerful selling points in an initial pitch.

In short, you’re not just selling talent; you’re selling a solution.

For Investors and VCs

The benefits extend beyond recruiting. For investors, particularly those involved in private equity or early-stage venture capital, aligning investments with in-house technical strengths is a smart move.

If your existing portfolio or internal dev team has expertise in React or Spring Boot, backing companies built with those frameworks lowers the barrier to post-investment value creation. You can step in confidently to help scale the product, address tech debt, or support hiring.

This is especially important during technical due diligence. Knowing the underlying stack can make or break a deal.

Investing in a company built on outdated or obscure tech could mean huge refactoring costs later. But when the tech matches your team’s strengths, you can accelerate growth right from day one.

For Developers and Open-Source Contributors

Developers and open-source contributors also benefit from visibility at the tech stack level. If you’re maintaining a library or tool for a specific framework, it’s beneficial to know who’s using it and what they’re building.

Imagine you’re contributing to Vue.js or Elixir/Phoenix. Being able to browse a list of all SaaS companies using your preferred stack gives you insight into adoption, collaboration opportunities, and even potential job openings.

For tool builders targeting devs, this is a marketing goldmine. Selling a CI/CD pipeline plugin optimized for Next.js

SaaS Browser can instantly surface all SaaS products built with Next.js, giving you a highly qualified list of leads for your go-to-market strategy.

For Founders and Product Managers

If you’re tracking your competition, knowing what frameworks they're using can be incredibly insightful.

Are competitors migrating to serverless? Are new startups in your niche adopting lightweight stacks like Flask or SvelteKit? These aren’t just fun facts, they’re valuable signals.

They can guide your architectural decisions, help you hire the right engineers, and reveal opportunities to stand out. Spotting underused but promising frameworks early could give you a technical advantage in a crowded market.

Especially if they are growing in size, there is always an opportunity to create new products to target emerging technologies.

So, How Do You Find SaaS Companies by Technology Stack?

Most SaaS directories provide you with surface-level data, including category, pricing, and possibly the target audience. They rarely tell you what’s under the hood. But that’s precisely where SaaS Browser comes in. SaaS Browser is the only directory that doesn’t just tell you what a SaaS product does; it tells you how it’s built.

With SaaS Browser, you can search and filter SaaS products by their actual underlying technology stack. Want to see every SaaS company built with Next.js?

You can.

Curious about who’s using Laravel, Django, React, Node.js, or Spring Boot? It’s all searchable, all filterable, and constantly updated.

Find SaaS by technology usage

Here’s just a small sample of the frameworks and languages you can filter by:

Hosting & Marketing Tools Matter Too

In addition to tracking the technologies SaaS companies are built with, SaaS Browser also monitors where they’re hosted. Whether a company is deploying on AWS Cloudfront, Cloudflare, Vercel, Netlify, or another cloud platform, we capture and categorize that information across our entire database. 

This is especially valuable for infrastructure providers, cloud consultants, or DevOps-focused investors who want to understand market share, platform preferences, or identify potential clients based on their current hosting environment.

We also go beyond infrastructure and code; we track the affiliate and referral software that SaaS companies use. Whether it’s PartnerStack, Rewardful, FirstPromoter, Endorsely, or other affiliate platforms, SaaS Browser gives you visibility into which tools are powering SaaS growth engines.

This makes it incredibly useful for affiliate managers, partnership platforms, and performance marketers looking to identify users of competing or complementary tools. From tech stacks to monetization strategies, we help you see the whole picture behind every SaaS.

It’s Easy to Add New Technologies

One of the strengths of SaaS Browser is the flexibility and speed of our technology detection engine. We’ve built our system to not only track hundreds of popular frameworks and languages but also to incorporate new or niche technologies as they emerge quickly. If there’s a specific framework, language, or platform you’re interested in, no matter how obscure, you can request it through this form.

Once submitted, our system typically begins scanning and tagging relevant SaaS companies within just a few hours. So whether it’s a fast-rising frontend framework or a specialized backend tool used by only a handful of teams, we can help you surface every SaaS using it, fast. Don’t hesitate to request a technology; the more specific, the better.

Why SaaS Browser Is the Largest and Most Comprehensive SaaS Search Engine

With over 566,000 SaaS listings and 10,000+ new ones added monthly, SaaS Browser is by far the largest and most up-to-date SaaS directory on the internet. Unlike static lists and spreadsheets floating around the web, SaaS Browser continuously crawls and analyzes the internet to surface both well-established and emerging SaaS companies. It’s not just about volume, it’s about depth. You get rich, detailed profiles, including product categories, pricing models, contact info, and yes, technology stacks.

Whether you’re a business development rep hunting for qualified leads, an investor validating a deal, a product manager benchmarking competitors, or a developer scouting your next job, SaaS Browser helps you get the information you need, faster and wiser.

In a world where everyone is building SaaS, finding the technologies used by SaaS, knowing how they're built is your edge. SaaS Browser makes it easy to discover, analyze, and act on that information at scale.

Start your search at SaaS Browser and unlock the full power of the SaaS ecosystem.