Corca

Corca

@corca.io

Collaborative Math Editor

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Text is a string. Math isn’t. It grows in every direction into multi-line structures. That’s why people still do math on paper. We’re bringing that experience to computers. Corca is WYSIWYG math editor, and it's fast!

(x² − 1)/(x − 1) looks like it should simplify, and it does. In Corca you select it, right-click, pick simplify and then factor, and it becomes 1 + x where you wrote it.

You write e^iπ and only the i ends up in the exponent. If you've ever written LaTeX, you've done this. In Corca you select iπ, right-click, and move it to the exponent.

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mx = −kx isn't Newton's law for a spring until the first x has two dots on it. Select it, right-click, and pick double dot. Now it reads mẍ = −kx.

v = v0 + at needs its 0 as a subscript. Select the 0, right-click, and pick to index, and it's v₀. That's the whole menu for now. If there's something else you'd want a right-click to do, tell us.

You write e^iπ and only the i ends up in the exponent. If you've ever written LaTeX, you've done this. In Corca you select iπ, right-click, and move it to the exponent.

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Expanding (a + b)³ by hand is where a coefficient usually goes missing. Right-click it, pick expand, and you get a³ + 3a²b + 3ab² + b³.

You write "where theta is the launch angle" in plain text. Select theta, right-click, and convert it to a variable, so it becomes θ. Then link "launch angle" to θ, and months later you still know what θ is.

You write e^iπ and only the i ends up in the exponent. If you've ever written LaTeX, you've done this. In Corca you select iπ, right-click, and move it to the exponent.

To differentiate ∛x, you first rewrite it as x^(1/3). Select it, right-click, and pick Change notation. It switches in place, and you carry on from there.

(x² − 1)/(x − 1) looks like it should simplify, and it does. Select the top, right-click, and pick factor. It becomes (x − 1)(x + 1), and you can see the x − 1 that cancels.

That being said, we linked variables and words! Right-click a word to link it to a variable. Hover over E, and “energy” lights up in the text. And the other way around.

Corca@corca.io

Most people read E=mc² as “E equals m c squared.” It means energy equals mass times the speed of light squared. A lot of math is written for people who already know what the letters mean. We’ve been trying to fix that in our docs, starting with the letters.

Most people read E=mc² as “E equals m c squared.” It means energy equals mass times the speed of light squared. A lot of math is written for people who already know what the letters mean. We’ve been trying to fix that in our docs, starting with the letters.

Writing math on a computer is full of small stops. Three of them are gone this summer: 1. You almost never need the whole derivation. You need one step out of forty, fold the rest

2. Leaving the doc to convert a unit costs more than the conversion. So it happens in place now

3. Text and math shouldn't feel like two different documents. Right-click a word, and it becomes a variable

It wasn’t intentional at first, but most of our recent releases ended up solving the same kind of problem. Fewer tabs, fewer copy-pastes, fewer places where your train of thought gets interrupted. Here’s what changed ⬇️

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You can now run Python directly inside your document. Test an idea, analyze data, make a plot, then rerun everything with Run All after making changes.

We also shipped a lot of smaller improvements across OCR, math input, units, percentages, collaboration, and the editor. They don’t deserve separate announcements, but together they make Corca feel a bit smoother to use 💙

It wasn’t intentional at first, but most of our recent releases ended up solving the same kind of problem. Fewer tabs, fewer copy-pastes, fewer places where your train of thought gets interrupted. Here’s what changed ⬇️

AI can now work with your files. Drop in a PDF or image, ask questions, and keep the conversation next to your document instead of moving everything into a separate chat.

You are using the same variables over and over. It’s nice when the document remembers them.

Nice not having to keep a YouTube video, a paper, and your notes open side by side anymore. You can now embed them directly in Corca.

Corca raised a $7.8M round led by NEA, with NVenture, Daft Capital, and others! We're on track to democratize math for everyone. You don't need to be "good at math" to start. We started with natural math editing, and now AI explains and helps you along the way. Now, back to work!

Most math-heavy work is trying things, getting stuck, changing the model, asking questions, realizing you were solving the wrong problem. It’s also notes, calculations, simulations, graphs, AI conversations, and half-finished ideas. We think those things belong in the same place.

You can just type matrices in Corca directly from the keyboard. Shift+Enter adds rows. Shift+Space adds columns.

Type “integral,” get ∫(x)d(x). That’s basically it.No backslashes or commands. You just type, and it turns into notation. That's the entire learning curve.

Hints are taking care of the mechanical math — evaluating sums and products, factoring and expanding expressions, working with matrices, computing statistics, and using variables defined earlier in the document.

We haven’t posted here in a while, so let’s unpack what we’ve been working on over the past few months, one by one. Automatic units. Add units to your variables once, and they carry through every calculation automatically. Set v = 10 m/s and t = 2 s, and distance comes out in meters.

We stopped writing text on paper years ago. But when it comes to math, we still use it. Not out of love for paper, just because typing math is slow and painful. Corca is as fast as paper, but can also CALCULATE.

Big update! 🚀 Now, Corca not only lets you type math — it actively helps you with it. Just type an equation, and it will suggest the solution. It can solve equations, simplify expressions, and even tackle integrals. And this is just the beginning — more is coming soon.

Yes, it’s still beta. Hints can’t do a lot of stuff yet—for instance, no linear algebra or summation (for now). But we’ll keep adding capabilities. If you need something ASAP, or something doesn’t work—shoot us a message. 🙌

Drag any image into your doc, click “Recognize,” and Corca extracts the math—equations, symbols, text.

In Corca, when you type math, you’re not just entering symbols—you’re building structured mathematical objects. For example, "sinx" isn’t just four characters—it’s the function sin applied to the variable x. That structure is powerful, but editing used to feel a bit awkward.

Now it’s smooth. Numbers are still full math nodes under the hood, but you can edit them like regular text. It feels natural—and looks familiar.

We’ve finally added tables support! It’s still far from perfect, we have plenty of work to make them more useful. But at least you can now organize your data in tables.

Click the button in the right sidebar to add a table. Pro tip: press Shift + Space to add a column and Shift + Enter to add a row—the same shortcuts work for matrices.

💥Introducing Teams! Now you can create a shared space for your company, research group, or class. Store all your docs in one place and work on math together—for real this time.

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Collaborate on research with your lab or group. Structure your papers, ideas together. Like a real-time math lab notebook.

💥Introducing Teams! Now you can create a shared space for your company, research group, or class. Store all your docs in one place and work on math together—for real this time.

Why teams? Build a knowledge base for your company or research team. Organize research, references, frameworks and methods in one place.

New update: Fork! Forking creates a copy of the document. It lets you experiment freely without affecting the original document and keeps a link to it. You can find the fork button under the 'Download' button.

Now you can write equations in 10 languages. No matter where you are or what language you speak, math should be easy to write.