At Repl.it, our mission is to make programming more accessible, more creative, and more fun. A place away from the modern software development grind. It’s an ambitious mission, and it's already resonated with millions of coders who followed their creative energy to build great apps, like repl.email, a free email service built and hosted entirely on Repl.it and available to anyone with a Repl.it account. Repl.it has grown so much in the past few years: To give you an idea of the scale we're ...| Replit Blog
People in our community build awesome games, apps, and websites on Repl.it's web programming environment, but until now they didn't have any easy way of sharing these creations with other people. But today we're fixing this: every web program you write we will automatically host for you under a subdomain with your name. You're then free to share the website, make it your homepage, submit it as homework, or even build it as your startup company. Here is a quick video of how it works. Notice ho...| Replit Blog
Stay updated with the latest Replit product releases, events, and other news. Learn about how we ship new features, design, and engineering.| Replit Blog
The main task of the infrastructure team at Replit is to ensure your Repls run well. A Repl can be thought of as a Linux container with a filesystem. To run Repls, we need to take care of several pieces of infrastructure: Virtual machines to run Repl containers on Databases to keep track of container and VM states Cloud storage to store Repl contents Reverse proxies to route HTTP requests| Replit Blog
Having a solid foundation is critical for us to be able to fulfill our mission of making programming more accessible, more creative, and more fun. We did a great job of making the platform more stable during last year, but every now and then we would still run into unforeseen problems that cascaded into other parts of the platform, producing a bad experience for everyone. So back in October (just a few weeks after I joined the team) when we had 2 load-related site-wide outages within a week, ...| Replit Blog
We had the idea for Replit in Jordan, launched as a startup in New York, and incorporated as a company in San Mateo. The US gave us the infrastructure, the capital, and network to launch our business, and for that we're forever grateful. However, to us, the internet is a new country and we want to make our citizenship official and our commitment real. We're joining our global community of hackers, students, teachers, and entrepreneurs and becoming a global company and service. Starting today:...| Replit Blog
With Workflows, you can easily save your development processes and organize them as a sequence of Tasks. Instead of having to repetitively type commands into your shell and remember them, Workflows provide an intuitive interface to configure your frequently used commands and execute them with the click of a button. Simplifying development with Workflows Workflows give you the ability to better organize your project execution pipeline, while offering an accessible interface to reuse them. Usin...| Replit Blog
During the ReplCon 2022 keynote, we announced that we were going to geo-distribute our infrastructure so that your Repls are much faster when accessed outside of the United States. The speed of electrons / light in a medium is a fundamental speed limit. Most of our users are several thousand kilometers away from the data centers where we host Repls (currently limited to the United States), so the round trip from them to the users' homes is going to necessarily take several hundred millisecond...| Replit Blog
“Command line interfaces. Once that was all we had. Then they disappeared, replaced by what we thought was a great advance: GUIs. GUIs were - and still are - valuable, but they fail to scale to the demands of today's systems. So now command line interfaces are back again, hiding under the name of search. Now you see them, now you don't. Now you see them again. And they will get better and better with time: mark my words, that is my prediction for the future of interfaces.” [1] Don Norman ...| Replit Blog
At Replit, we operate a cloud-based infrastructure that allows developers to collaborate and create within an all-in-one, integrated development environment. One of the most significant parts of this experience is the latency perceived by the developer when interacting with the workspace. While we can always add resources such as CPU, RAM, and storage on demand, when tackling latency we have to deal with some fundamental physical limits such as the speed of light. This means that you can only...| Replit Blog
What even is a terminal? Back when computers were still in their infancy, the “computer” usually was a big cabinet in the middle of a room. They typically exposed some internals via a front panel with lots of knobs and ports. Users would connect a terminal device (sometimes called a teletype or a TTY) to this front panel in order to input text and print the corresponding output. In the 1970s when microcomputers like the Apple I started becoming more mainstream, displays and keyboards star...| Replit Blog
Amjad Masad, CEO: I'm excited to welcome Michele Catasta to the Replit team as our VP of AI. Michele joins us from Google, where he was Head of Applied Research at Google Labs and, before that, Google X, where he researched Large Language Models applied to code. Michele has a Ph.D. in Computer Science and was Research Scientist and Instructor in AI at Stanford University. This manifesto is a culmination of a conversation Michele and I have had for over a year on the future of AI and its impac...| Replit Blog
In 2023, we brought the vision of idea to software, fast, to reality. We shipped the first conversational AI programmer to code your ideas faster, made AI available for everyone, and introduced Deployments to ship from where you write your code. We made coding on Replit a better and more productive experience by redesigning the Console, Git integration, Packages tool, and more. We released the Replit Desktop App so you could choose the form factor that works best for you. We’re not finished...| Replit Blog
If you’ve ever tried to install a complex Python package, you know the pain of scouring the package’s README for the apt install or brew install commands necessary to bring in the system-level dependencies the package needs. This approach can be time-consuming and frustrating, especially when a cascade of errors indicates a missing system dependency — a pain point that isn't always immediately obvious. You can now skip the README and let us install everything for you. Replit will automa...| Replit Blog
The new Console has been launched for a while, bringing a whole new UI, persisted history of executions, metadata about the runs, and more! Let’s take a tour of where it came from, how it works, and how it was built. Brief history In the past, the Console looked very similar to the Shell and, depending on the Repl configuration, sometimes behaved like one: ...and sometimes did not:| Replit Blog
Learn how Replit trains Large Language Models (LLMs) using Databricks, Hugging Face, and MosaicML Introduction Large Language Models, like OpenAI's GPT-4 or Google's PaLM, have taken the world of artificial intelligence by storm. Yet most companies don't currently have the ability to train these models, and are completely reliant on only a handful of large tech firms as providers of the technology. At Replit, we've invested heavily in the infrastructure required to train our own Large Languag...| Replit Blog
Note: The press release for our funding announcement can be found below. You can find the original press release here. Replit is Building the Best Cloud and AI Development Experience for Software Creators Replit, the world's fastest-growing developer platform and creator of Ghostwriter, the generative AI for software development, announced the close of its $97.4 million financing round at a $1.16 billion post-money valuation. Replit will use the new funds to innovate on its core development e...| Replit Blog
The easiest, fastest way to put a server on the internet should also come with secure defaults. That's why we're excited to announce that Replit is now HTTPS-first, which brings additional privacy, integrity, and security benefits to servers hosted on our platform. This applies to every HTTP server repl on Replit. HTTPS-first Our hosting infrastructure makes it easy for anyone to instantly have a secure, HTTPS-secured server by default without having to lift a finger. Any repl can open up a p...| Replit Blog
To make it so that anyone with a web browser can code on Replit, our backend infrastructures runs on preemptible VMs. That means the computer running your code can shutdown at any time! We've made it really fast for repls to reconnect when that happens. Despite our best efforts, though, people had been seeing repls stuck connecting for a long time. After some profiling and digging into the Docker source code, we found and fixed the problem. Our session connection error rate dropped from 3% to...| Replit Blog
For every human endeavor, there inevitably arrives a moment when an innovation profoundly elevates the potential for productivity. For instance, communication was revolutionized by the invention of the printing press, and later, the Internet. After decades of steady progress, software is witnessing its disruption phase as well -- AI is redefining the whole software development lifecycle. AI is one of the key ingredients to go from idea to software, fast -- we witnessed this from over a year o...| Replit Blog
We remain committed to providing a powerful free development experience to anyone who wants to code. This post is only about the hosting experience, which we are migrating to our new Deployments product. In April of this year, we released Reserved VM Deployments. Then, we shipped Static and Autoscale Deployments. Since then, we’ve noticed even more companies hosting anything from microservices to their entire applications on Replit. Some of our favorite startups to watch include: HeyDATA ...| Replit Blog
Package management on Replit just got an upgrade. We’re releasing new features that make it faster to load, simpler to manage, and easier to troubleshoot packages for your projects. Read on to learn about the new additions or try it out now on Replit! Why we built the Packages tool Software projects already demand enough from developers implementing features, leaving those same developers little time to build everything from scratch. Pulling in code from other organizations or individuals c...| Replit Blog
We’ve recently improved Ghostwriter’s inline actions, Explain Code, Generate Code, and Edit Code (formerly known as Transform Code), to make your coding sessions even more efficient. Here’s a summary of the key updates. Widgets: say goodbye to popovers! Previously, Ghostwriter used popovers to generate, explain, and edit code. While this served us well initially, it sometimes disrupted the flow of coding, and the popovers could be lost when you clicked outside of or moved around the cod...| Replit Blog
Stay connected A few months ago, we shared that we upgraded some of the virtual machines (VMs) that back Repls. This meant that Hacker, Pro, and Teams users were 10x less likely to have to reconnect and lose the running state of their program because the backing container restarted. We know that the reconnect can be painful and interrupt your state of flow.| Replit Blog
Repls today allow 256+ GiB of storage space, up from a historical 1GiB limit. This post is about the infrastructure that enabled that change. Historically Replit limited files in each Repl to 1 GiB of storage space. The 1 GiB limit was enough for small projects, but with the advent of AI model development and with some projects needing gigabytes worth of dependencies to be installed, 1 GiB is not enough. We announced on Developer Day that we were rolling out the infrastructure to unlock much ...| Replit Blog
Finding that one comment, class, or function in your codebase is important. You might not always know where to look... which is why we created a brand new Code Search tool! From simple queries to regular expressions it has never been easier to get work done on Replit. The new Code Search tool supports queries with word filters, regular expressions, include patterns, exclude patterns, as well as replacements (with regular expression capture group support) so that you can find what you need and...| Replit Blog
Note: Since this announcement, Replit AI has launched a series of new features and updates. For most current information, check out our Replit AI page. Original press release here Under the new partnership, Replit developers will get access to Google Cloud infrastructure, services, and foundation models via Ghostwriter, Replit's software development AI, while Google Cloud and Workspace developers will get access to Replit’s collaborative code editing platform. The collaboration will acceler...| Replit Blog
Last week we announced the Pro plan to speed up your development with Replit's AI tools and an even more powerful Workspace. Today we're expanding all of our paid plans to add the ability to use SSH to remotely access your Repls. How do I get started? If you're subscribed to a paid plan, you'll notice a new "SSH" entry in the Tools section of the Workspace. You can add your SSH keys and start working with your Repl remotely!| Replit Blog
Today, we celebrate 20 million developers on Replit. They've created 240M+ Repls, ranging from multiplayer games to production software with the power of real-time collaboration in the cloud and state-of-the-art AI tools. Developers build their businesses on Replit too, from indie hackers to YC-backed startups like Fig, AmpleMarket, and BerriAI to unicorns like Deel. The Replit Story In 2010, I was a young hacker in Amman, Jordan. I didn't have my own computer, but coding was my life. I’d g...| Replit Blog
The technological singularity—or simply the singularity—is a hypothetical future point in time at which technological growth becomes uncontrollable and irreversible, resulting in unforeseeable changes to human civilization. According to the most popular version of the singularity hypothesis, I.J. Good's intelligence explosion model, an upgradable intelligent agent will eventually enter a "runaway reaction" of self-improvement cycles, each new and more intelligent generation appearing more...| Replit Blog
A few weeks ago we released Tabs, which allowed people to open up different files and tools you want, side by side. But the Workspace’s overall layout was still pretty static: you can only open things side by side, with no way to remove panes or quickly rearrange what you're focused on. That's changing today! With splits, you can completely customize the layout of the Replit Workspace. This might not seem like a big deal, but it unlocks a lot of new possibilities for templates and makes Rep...| Replit Blog
Update: Ghostwriter is out now! In 2018 when we announced Multiplayer Mode, we said it's the most significant evolution of Replit to date. For the first time, you could share a URL with a friend, student, or coworker and get a shared text editor and runtime — no setup required. Replit Multiplayer is changing how an entire generation of programmers learn how to code and make software. Today, we're announcing Ghostwriter, which infuses state-of-the-art intelligence into nearly all IDE feature...| Replit Blog
Building a robust and powerful UI without compromising on simplicity is complicated, and we're always exploring solutions that alleviate that problem. A few years ago, we rewrote our workspace architecture, and Amjad gave a talk about it. We're about to add a lot of firepower to our layout system (stay tuned!), but we noticed significant shortcomings in our abstractions. This blog post will outline the flaws and how the underlying data structure hurt the interactions. To keep this post concis...| Replit Blog
Mission first Computers are the most powerful tools to exist in the history of humanity. Sadly most people are mere consumers of these machines. Only a relative few–the professional software developer–can use this superpower to its fullest extent. It’s creating an unbalanced world where there are programmers, and then there are those who are programmed. The situation is analogous to literacy before the printing press, where only the powerful had access to books and written communication...| Replit Blog
We want the people at Replit to really love working here (we do!). To help you make an informed decision about whether that would be the case for you, we challenged ourselves to come up with a list of reasons someone wouldn’t want to join our team. We hope it’ll help you learn more about the way we work together and whether that’s the way you’d be excited to work, too. 1. You don’t think the internet should be an open platform| Replit Blog
Mobile is the future of computing. But building good software creation tools for mobile devices is hard. Luckily, at Replit, we like to run toward the hard things. This week, we launched a completely rearchitected mobile IDE for web. If you’ve used it before, the new version won’t look much different, but it will likely feel different. Why We Care Mobile devices are the world’s most ubiquitous computers. At Replit, we have kids coding their next big idea on their phone on the way to sch...| Replit Blog
