Changelog

Release history for epixtudio

0.4.0

globals: define {{variable_name}} tokens and use them in any text field across your graph; values cascade through three tiers (settings, graph properties, graph nodes) so you can set defaults globally and override per-graph or mid-flow
- new graph/ node category with global_set, global_get, global_list, and global_reset for working with globals inside the graph
- graph/args node (migrated from utility) for accessing graph arguments
graph properties overhaul: field labels now display their token names (graph_title, graph_description, etc.) so you can reference them as globals; add custom fields that participate in the same cascade
Save All via Ctrl+Shift+S saves every dirty tab at once; Save As moved to Shift+Alt+S
redesigned tab bar: darker background, pipe separators, active tab gets rounded top corners with an accent color bar and canvas-matching fill; .xtudio extension stripped from labels; close buttons hidden by default (toggle in settings)
port binding system: input ports now show their state at a glance (hollow = unbound, filled = hardcoded, circle = wired, diamond = multi-wire); click any port dot to bind, unbind, or wire without dragging
- hovering a node in the bind menu highlights it on the canvas so you know what you’re connecting to
- duplicate node types show a #xxxx discriminator so you can tell them apart
multi-edge fan-in: feed multiple edges into a single input port and choose how they resolve (last truthy, first truthy, priority order, random, or merge)
- merge is type-aware: concatenates text, sums numbers, ORs booleans, deep-merges JSON
- strategy and priority order configurable from the port dot menu
five layout algorithms: right-click the canvas and pick from Compact Sugiyama (new default with crossing minimization), Native Stacking, Force-Directed, Orthogonal, or Radial; all respect grid snapping
node card improvements
- two-axis resize: drag right edge, bottom edge, or corner; preview area scales to fill the extra space
- double-click the left side of a node title to rename, right side to collapse/expand
- Copy Output and Save Image in the node right-click menu
- port labels shift color to reflect state: lightened type color when bound, bright when hardcoded
- tooltips only appear after a 1.5s hover delay on the title
right-click any text field for cut, copy, paste, select all, and clear
updated accent colors to match the site (blue #6aa3f0, pink #ea5da3); tighter card rounding across the board
device connectivity: new device/ node category with 15 nodes for talking to hardware directly from your graph; serial ports, Bluetooth Low Energy, GPIO and I2C via Firmata, and a print_label node that dithers images to 1-bit and sends ESC/POS to thermal printers
- serial primitives: list available ports, open, write, read, close
- BLE: scan, connect, write, read, disconnect
- Firmata: GPIO set/read, I2C write/read
tag-based node search: every node now carries search tags (synonyms and semantic groupings) so searching “save” finds both io/write_file and image/save; NodePicker upgraded from substring matching to full fuzzy search with tag support
label printing: print_label prints to TSPL2 label printers (Nelko P21 and similar) over Bluetooth serial; configure label size, density, rotation, copy count, and bit inversion
receipt printing: print_receipt handles ESC/POS thermal printers; BLE receipt printers auto-detect their service and characteristic UUIDs
ble_list_services node for discovering what services and characteristics a connected BLE device exposes
disconnect_all releases every connection the app opened (serial and BLE) without restarting; leaves system devices alone
list_ports now shows Windows device names (e.g. “Standard Serial over Bluetooth link”) so you can tell which port is which
device log panel: scan, connect, and print operations stream real-time progress to the log panel
node timeout protection: stuck nodes get a 35-second safety net; timeout error instead of a frozen UI
system font support: drawing/text accepts system font names like “Arial” or “Segoe UI” directly; no file path needed
“Copy all” in the log panel copies every visible entry to clipboard
Ctrl+C in previews copies your text selection instead of copying graph nodes
drawing/html and svg/render now re-render when inputs change instead of showing stale content
dropped auto-connect when dropping new nodes onto the graph
“Run selected” evaluates exactly what you selected; no longer triggers downstream nodes

0.3.1

color picker now supports alpha/transparency with a dedicated slider, hex output includes the alpha channel when not fully opaque
node documentation regenerated to include all latest node updates and corrected port hints

0.3.0

elements: 14 new UI control nodes (button, text input, textarea, label, checkbox, select, radio, slider, color picker, progress bar, image, container, tabs, and form) for building interactive interfaces directly in the graph
- the form node assembles controls into a complete interactive document with light/dark theming and custom CSS
- live preview window lets you interact with forms and feed events back into the graph
compile a graph with a form node and the output is a standalone desktop app where the form is the UI
event listeners now support dynamic channel names wired from upstream nodes, so you can route events programmatically
run selected now evaluates only the selected nodes, using cached results for upstream inputs; no accidental re-triggering of file writes or deletes upstream
shift-click a node to visualize its entire upstream dependency chain with a cascading glow pulse; ctrl-shift-click to also select all nodes in the chain
new image/to_ansi node converts images to ANSI terminal art with multiple rendering modes and color output options
ANSI output now renders as a live terminal preview instead of raw escape codes
color inputs now open a full color picker; also available standalone from View > Color Picker
file path inputs no longer mangle Windows backslashes; the browse button now opens to the folder of the current value
text inputs now have an expand toggle (▸/▾) to switch between single-line and multiline editing
fixed brief error flashes on nodes downstream of frontend-rendered nodes
Google Fonts now fully download before the first render, fixing missing fonts on initial captures
fixed license key verification

0.2.0

graph compiler: compile your graph into a standalone Node.js script, a reduced single-file build, or a native executable with a custom icon
batch execution: run a graph over a list of inputs with progress tracking; new batch_input and batch_collect nodes handle the plumbing
audio nodes: 8 new nodes for generating waveforms, visualizing audio, mixing channels, and exporting WAV files
expression node: write live reactive formulas that reference other node outputs by name
watch panel: monitor node output values in a live table without clicking through each node
command palette: Ctrl+Shift+P opens a searchable overlay for every action, keyboard shortcuts listed alongside
undo history panel: Ctrl+Shift+H shows a visual timeline; jumping to a point briefly glows affected nodes green, amber, or red
graph statistics: Ctrl+I for node counts, category distribution, connectivity metrics, and per-node eval timing
canvas and wiring improvements
- wire reroute nodes for cleaner complex graphs
- edge splice (double-click a wire to insert a node inline)
- auto-wire suggestions when placing nodes near compatible ports
- edge selection and batch delete
- port type badges on connections
- snap-to-alignment guides and an equal spacing tool
node quality of life
- rename nodes with a double-click
- collapse nodes to just their header
- custom node colors via the context menu
- save and load configuration presets per node type
- quick node replacement (swap type, keep connections)
- documentation tooltips on hover
- execution order badges
clipboard and export
- copy/paste nodes as JSON, even across graphs
- paste images from the system clipboard into image nodes
- export the canvas view as PNG
navigation and search
- find nodes on canvas with result highlighting and jump-to-node
- enhanced fuzzy search across type IDs, categories, descriptions, and port names
- recent files in the welcome dialog and file menu
canvas text annotations: freeform labels anywhere on the graph for documentation
graph metadata: title, description, author, and tags stored with each graph
xript packages: bundle custom nodes into .xpkg files for sharing and import
app data backup and restore: export and import settings, presets, and group definitions
accessibility: respects system motion preferences; overlay dialogs trap focus for screen readers
keyboard shortcut customization: remap any shortcut from settings
context menu submenus: node actions organized into Arrange and Group submenus
background task notifications: desktop notifications when long evaluations finish
in-app feedback: submit bug reports and feature requests without leaving the app
227 built-in nodes across 19 categories (up from 190 in v0.1.0)

0.1.0

canvas-based node editor with pan, zoom, grid snapping, box selection, and multi-node drag
190+ built-in nodes across 17 categories: math, text, logic, data, transform, image, drawing, color, format, crypto, debug, io, net, event, flow, group, and utility
real-time output preview at every node in the graph
type-safe port connections with live compatibility feedback during drag
type coercion across compatible types (e.g. number to text) with visual indicators on converted edges
node grouping and subgraphs with drill-in editing, breadcrumb navigation, and reusable group definitions
loop and iteration nodes: for_each, for_range, while, and repeat with per-iteration input injection
drawing primitives: rectangle, ellipse, line, text rendering, and image compositing inside the graph
HTTP request node for fetching APIs and web data directly inside a graph
conditional routing via select, gate, and compare nodes
CSV parsing, table manipulation, JSON path queries, and tabular data helpers
image crop, resize, rotate, flip, brightness, contrast, blur, sharpen, grayscale, invert, and composite nodes
file system utilities: file existence checks, path join/parse, and shell command execution
encoding and hashing: base64, URL encode/decode, HTML encode/decode
full undo/redo with crash recovery and automatic session persistence
auto-save with configurable interval
drag-and-drop file open with .xtudio file association
native app menu bar with platform-appropriate keyboard shortcuts
dark and light theme toggle
canvas minimap for navigating large graphs
find and navigate to any node on the canvas
node enable/disable bypass toggle
copy-paste nodes as JSON via system clipboard
graph validation with warnings and diagnostic logging
graph execution cancellation and timeout support
in-app documentation, hotkey reference, and changelog viewer
execution log panel and output console
xript extensibility system with in-app custom node authoring via QuickJS WASM sandbox
auto-layout and zoom-to-fit
keyboard shortcuts panel and quick search
drawing/html node: renders HTML/CSS/JS to an image with CSS isolation, transparent background, auto-trim, and Google Fonts support via a dedicated fonts input
stale node detection and one-click upgrade when node definitions change
tab name now restored correctly on session reload
image previews centered in node cards and inspector
CSP opened for external stylesheets, fonts, and images to support user-authored HTML content