Using the Playground

Updated October 9, 2026 · 3 min read

Chain tools from every V2Stack suite into one flow, run it, and save the result. Everything runs in your browser, so nothing is uploaded.

What is the Playground?

The Playground is a canvas. Each box on it is a node that does one job: shrink a picture, take the text out of a PDF, make a QR code, check spelling, convert JSON to YAML. A line between two nodes sends what one makes to the next. It reaches all 342 tools of the 8 suites: 68 are nodes you can chain, 3 open the real tool in a window inside your flow, and the 130 calculators and references with nothing to chain open on their own site.

Go to the Playground (opens in a new tab).

Start in a few seconds

Drop a picture or a PDF on the opening screen. A workflow is built around it and runs straight away.
Pick a template. Playground opens the file chooser for you and runs it when your file is in. There are 20, grouped by what you bring: pictures, PDFs, text and code, codes, study and email. Each shows the real steps it builds.
Drag a file onto a template to start that template with the file. While you drag, the templates that can take it light up.
Start blank and add steps with the search (press the slash key).

Your first flow

Open a template, or drop a file. A workflow is built for you.
To add or change files later, select the Upload step (or File, for PDFs and other files) and choose your files. You can add up to 50.
Select any step to change its settings in the panel on the right.
Press Run again after a change. Each step shows a small preview, the size of what it made and how long it took.
On the Download node, press Save. Several files are packed into a ZIP.

How connections work

One node feeds many. Connect an Upload to three Resize nodes and each makes its own size from the same picture.
Many feed one. A node with several incoming lines takes everything that arrives, top to bottom.
Some connections are refused. A PDF cannot go into a node that wants a picture, and a path cannot loop back on itself. The canvas tells you why.
Run only redoes what changed. Change one node and press Run: the nodes before it are reused. Run to here runs just the part of the flow that feeds a node.

Watching a run from another tab

While a flow runs, the browser tab shows a turning badge and the title starts with Running. When it finishes the badge becomes a tick (Done) or a cross (Needs attention), then the plain icon comes back.

Open the More menu to copy a link to your flow, save it as a file, or open one. A link or file holds your nodes and settings, never your files, so whoever opens it adds their own. Passwords you type are never saved. Your current flow is also kept in your browser.

Naming the files that come out

The Download node can name files with a pattern. Use {name} for the original name, {n} for a counter, and {w} and {h} for the size. For example {name}-{w}x{h} turns photo.jpg into photo-800x600.jpg.

Browser agents

If your browser lets a page offer tools to your AI agent (Chrome calls this WebMCP, and it is in trial), More has a switch called Let browser agents use the text tools. It is off until you turn it on. The tools run in your tab and nothing is uploaded.

Keyboard

/ searches for a node to add
Ctrl or Cmd + Enter runs the flow
Ctrl or Cmd + Z undoes, and adding Shift redoes
Delete removes the selected node or line

Limits

Up to 60 nodes in a flow, 50 files per Upload node and 100 MB per file. Very large pictures (over about 100 megapixels) are refused, because a browser cannot process them safely. Remove Background downloads about 19 MB the first time you use it, and the dictionary tools about 5 MB.

How the Playground works (opens in a new tab) - every node, what it takes and gives
All tool suites - the suites one tool at a time

Need help with a flow? Contact us.

Still stuck? Ask on the contact page.