PVL Any To String

String nodes are the plumbing of ComfyUI - nobody gets excited about them until a workflow breaks because some number won't go into a text field. PVL Any To String is one of those quiet converters from the pvlprk/comfyui-pvl-api-nodes pack: it takes a boolean, an integer, and a float and joins whichever are connected into a single string with a delimiter you choose. Fully local, no API, no key - one of the pack's plain utility nodes.

The realistic use: you're building a "report" string - "Seed: 12345, CFG: 3.50" - to feed a text-overlay node, a save-name generator, or an API payload that insists on strings. Or you just need a number from one branch formatted into a prompt or a label somewhere else.

How it works

Three optional sockets - bool_input, int_input, float_input - are force-input (socket-only, no widget), so you wire them or leave them unconnected. The node skips whatever isn't connected and joins the rest with your delimiter (default ", "). One formatting quirk worth knowing: floats are emitted to four decimal places (3.5 becomes 3.5000), which is great for stable output strings but can look odd in a label.

Inputs and outputs

• delimiter (required string widget, default ", ") - the glue between values.
• bool_input / int_input / float_input - optional sockets.
• Output: string_output (STRING).

If you wire all three with defaults, you get something like True, 42, 3.5000.

Install

cd ComfyUI/custom_nodes
git clone https://github.com/pvlprk/comfyui-pvl-api-nodes

Restart ComfyUI. No key, no network, and none of the fal-node dependencies matter for this one.

Where people get burned

• Unconnected inputs are simply skipped. That's a feature, but it means the output string changes shape depending on what's wired - if your downstream text depends on a fixed format, always connect the same set.
• The float formatting is fixed at 4 decimals - there's no precision dial. If you need 3.5 not 3.5000, this isn't the node (or pipe the float through another formatter first).
• It's a converter, not a full text-formatting tool. For building complex strings from many parts, the pack's string-concat nodes are a better fit.