InkSplit is a full separation suite for screen-printing. It runs entirely in your web browser and produces print-ready color separations for simulated-process, spot-color, CMYK process, and DTF (direct-to-film) workflows. InkSplit also includes an optional built-in RIP for halftone screening, EPS/DCS export, PNG ZIP export, an ink library, project saving, and a credit-based billing system.

You can explore InkSplit without an account, but saving, downloading, and running full separations require a logged-in user. New sign-ups receive 20 free starter credits. Paid tiers (Creative, Studio, Print Pro) provide monthly recurring credits and unlock features like custom inks, the built-in RIP, and unlimited downloads.

Upload PNG, JPG, GIF, WEBP, or SVG. The maximum file size is 50 MB. SVGs are rasterized to PNG automatically. Images larger than 4000px on their longest side are scaled down; large files may be re-encoded to WebP to keep processing fast.

The full separation workspace is optimized for desktop. A mobile-friendly layout is available, but for the richest editing experience (channel operations, RIP, fine brush work) a desktop browser is recommended.

Clicking the InkSplit logo returns you to the Color Separator home screen.

Opens your saved projects library, where every separation you have saved is listed as a card with thumbnail, channel count, color swatches, base type, and download status.

Opens the Ink Library, where you manage default and custom ink colors used during color extraction and manual palette building.

Opens the Video Library of tutorials, tips, and feature demos.

Opens the Blog, with guides and articles on separation techniques and InkSplit workflows.

Opens the Subscription page, showing your current plan, credit balance, recent jobs, and available upgrades plus one-time credit top-offs.

SVG is rasterized to PNG at up to 3000px. PNG/JPG/GIF/WEBP over 4000px are scaled down to 4000px on the longest side. Files over 10MB may be re-encoded to WebP at a reduced quality to speed up processing.

When logged in, every uploaded image creates a Project record automatically, seeded with your saved defaults so the separation starts the way you like.

If you try to upload without being logged in, a prompt offers 20 free starter credits and sends you to sign up.

The desktop workspace is split into three columns: the Original image panel and Print Preview panel on the left, the Channels list spanning the bottom, and the Separation Settings panel on the right. On mobile these stack vertically.

Shows your source image over the chosen shirt color. The PROJECT NAME input lets you rename the project. The SAVE button persists your current separation and settings.

Displays the live composited print simulation. Status indicators show Loading / Ready / No data. A green dot means the composite is ready.

During separation, upscaling, trimming, super-prep, or EPS export, a full-screen overlay shows a spinning InkSplit logo, the current processing stage, progress percentage, an estimated time remaining, and rotating tips.

A dropdown that removes a chosen color from the image before separation. Pick a preset color or enter a custom hex, adjust the tolerance slider, then click to knockout. Undo/Redo arrows step through knockout history.

Crops away empty transparent margins around the artwork so separation plates are tight. Useful before EPS export if your RIP has trouble parsing oversized canvases.

Enlarges the image up to 4000px on its longest side for higher-resolution separations and downloads.

Runs an image-preparation pass that cleans and prepares the artwork for a cleaner separation. Combine with Trim and Upscale for difficult source files.

Displays the current working image dimensions in pixels (width x height).

When locked (magnifier icon), zoom and pan are disabled so you cannot accidentally scroll away. When unlocked (open-padlock icon), you can scroll-wheel to zoom and drag to pan. A tutorial tip appears if you scroll while locked.

Opens the wand tool popover. Click in the preview to select pixels within a tolerance. Toggle Contiguous to limit selection to connected regions. Shift-click adds to the selection; Alt-click subtracts.

Cycles through lasso, rectangle, and ellipse selection tools. Use the Invert Selection button (to its right) to invert the active selection. Selections constrain eraser, brush, and channel operations to the masked area.

Shows or hides the green selection outline without clearing the selection.

Removes the active selection mask entirely.

Dedicated Undo and Redo buttons in the mobile toolbar, plus Ctrl/Cmd+Z (undo) and Ctrl/Cmd+Shift+Z (redo) on desktop. Eraser and brush strokes share the same history stack.

Toolbar buttons (and Ctrl/Cmd+C / X / V) let you copy, cut, and paste channel alpha between channels. Combined with the selection tools this enables precise channel surgery.

On each channel card, a checkbox toggles whether that channel is a target for the eraser/brush. If none are checked, the checkbox flashes lime to remind you to pick at least one.

Collapsible section with shirt color presets and a custom color picker, plus the BASE on/off switch and base type controls.

Scales how aggressively highlight white is generated.

Pulls highlight white back from colorful areas so it only appears in near-white regions.

Caps the maximum opacity of the highlight plate.

Drops faint highlight pixels below this opacity, cleaning up noise.

Opens a custom color picker to add a new ink to the palette. Disabled in CMYK mode.

Channels are listed in print order (top prints first, bottom prints last). Drag the handle on any channel card to reorder.

Isolates a single channel in the preview so you can inspect it without visual clutter. Click again or select another to exit solo.

Shows or hides an individual channel from the composite preview.

Marks the channel as a target for the eraser and brush tools.

Removes stray isolated pixels and tidies a channel's alpha.

Adds another channel's alpha into this one at a chosen strength. Useful for boosting a color where it is weak.

Subtracts another channel's alpha from this one. Useful for removing contamination.

Creates a selection from all visible ink on this channel. Shift-click adds; Alt-click subtracts.

Creates a copy of the channel for variations and experiments. Merging never deletes originals.

Deletes the whole channel, or only the selected area if a selection is active.

Exports just this channel as a grayscale PNG.

A slider on each card that nudges the channel's opacity up or down. Use Bake to permanently apply the adjustment to the mask.

Per-channel input Min/Max/Gamma level adjustments to fine-tune each plate's tonal range.

Exports every visible channel as a labeled grayscale PNG inside a ZIP, named by print order and hex code.

Exports a DCS2 EPS bundle for Adobe Photoshop and other RIPs. If your EPS will not parse, run Trim on the artwork first.

In DTF mode, exports two PNGs: a solid white base and the color image. Enable Flipped to mirror the output for DTF printing.

Studio tier and above. Opens RIP settings for LPI, DPI, dot shape, screen angles, film size, and registration marks, then renders halftoned plates into a ZIP.

Shows the channel count being exported and any small-job discount eligibility before charging.

Available to Studio and Print Pro tiers. Reach it from the download type dialog.

Choose round, ellipse, square, diamond, or line dot shapes.

Auto, Split (distributed for simulated process), or Manual per-channel angles.

Width and height in inches for the output film sheet.

Toggle to add corner registration marks and a label to each film.

Live readout of the design's printed size at the current DPI; edit it to back-calculate DPI.

Search box filters projects by name.

Loads the project into the workspace by ID, preserving its separation, settings, and inks.

Permanently removes the project after a confirmation prompt.

Prev / Next buttons page through your projects eight at a time.

Creative tier and above can add custom inks with a name, hex, brand, opacity, and finish. Custom inks appear in the separator's Ink Library dropdown.

Paste tab-separated rows (Name, Hex, Brand, Opacity, Finish) to import many inks at once. A progress bar shows rate-limited import status.

A switch that disables all default inks so only your custom inks are used for extraction and selection.

Toggle any ink off to hide it from the separator without deleting it.

Search by name/hex/brand and sort alphabetically, by hue, by hex, by opacity, or by finish. Filter by brand, opacity, and finish.

Edit custom inks inline or delete them. Default inks cannot be deleted but can be toggled off.

First-time users see an onboarding flow to set shirt color, base, and a starter palette.

Toggle UI sound effects on or off. Sounds play on button clicks and separation completion.

When enabled, navigating to the separator immediately starts a new project.