Use the free Design Token Exporter below: your data never leaves your browser — all work happens on your device, and nothing is uploaded to any server.
What Design Tokens Actually Are
A design token is a named value for a decision you make once and reuse everywhere. Instead of writing the same teal colour code in forty places, you name it once as primary colour and let every button, link, and badge point to that name. When the brand colour changes, you change one token and the whole site follows. That is the whole idea, and it is powerful because it turns scattered guesses into a single source of truth. Tokens usually cover colour, spacing, corner radius, and type. Those four groups decide most of how a site looks, and they are the groups the tool above exports.
The tool works in a simple way. You pick your base colours, set a corner radius, a base spacing unit, and a base font size, and choose a font family. It builds a JSON file in the standard token shape, with each value labelled by type, so design tools and code can both read it. A live preview shows a card and a button built from your tokens, so you can see the system before you download it. The JSON is yours to keep: paste it into a design tool, feed it to a build script, or convert it by hand into CSS variables.
How to Use the Exporter
Start with colour. Pick a primary colour that will carry buttons and links, a secondary colour for highlights and badges, a background colour, and a text colour. Check that the text colour reads well on the background colour before anything else, because no token system fixes unreadable text. Next, set the corner radius. Small values look sharp and technical, large values look soft and friendly, and a middle value around twelve pixels suits most sites. Then set the base spacing unit, usually eight pixels, from which the tool derives a large spacing of double that value. Finally, set the base font size and family, and press Generate tokens.
Read the JSON before you download it. Each token has a value and a type, which is what makes the file portable: a tool that reads tokens knows a colour from a dimension without guessing. If a value looks wrong, change the control and generate again. There is no save step and no account, because everything runs in your browser and nothing is uploaded.
Why Tokens Beat Copy-Pasting Values
Copy-pasting a colour code feels fast until the brand changes. Then every pasted copy is a separate edit, and the ones you miss become inconsistencies: a button that is almost the right teal, a link that is a shade off, a badge from an older palette. Tokens remove that class of error entirely, because there is only one place to change. They also make reviews easier. A designer can look at a token file and see the whole system on one screen, instead of hunting through stylesheets for stray values.
Tokens also help teams. A new designer does not need to ask which blue to use, because the token file answers the question. A developer does not need to guess a spacing value, because the token names the approved one. The system still needs judgment, of course. Tokens do not choose your palette or set your hierarchy. They only make sure that once you have chosen, the choice is applied everywhere, every time.
Keeping a Token System Small
The most common token mistake is making too many. A file with two hundred tokens is not a system, it is a catalogue, and nobody remembers two hundred names. Start with the four groups in this tool, and add a token only when the same value appears in three or more places. A token used once is just a variable with extra steps. A token used everywhere is a real decision. If two tokens always change together, merge them. If a token never changes, it may not need to exist.
Name tokens by purpose, not by appearance, where you can. Primary colour survives a rebrand better than teal, because teal stops being true when the brand moves to blue. Background and text survive better than white and black for the same reason. Purpose names keep the file readable after the palette changes, which is exactly when you need it most.
Frequently Asked Questions
What format is the exported file? It is JSON in the common token shape, with nested groups for colour, radius, spacing, and font, and each leaf carrying a value and a type. Most design tools and token pipelines accept this shape directly.
Can I use tokens without a design tool? Yes. Convert each token into a CSS variable by hand, or with a small script, and reference the variables in your stylesheet. The tool gives you the values; the conversion is a simple mechanical step.
How many tokens should a small site have? Ten to twenty is plenty. Colour, spacing, radius, and type cover most needs, and a small file is one people actually maintain.
Build your tokens above, download the JSON, and use one file as the single source of truth for your next project.