comfyui-axces2000

Custom ComfyUI nodes by axces2000 — practical utility nodes for audio handling, image dimensions, text manipulation, and string composition.

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Nodes

🎵 Audio Loader

Load audio files into your ComfyUI workflow with a full-featured waveform interface.

Features

• Drag & drop audio files directly onto the node canvas
• Real-time waveform visualisation with played/unplayed colour coding
• Click or drag anywhere on the waveform to seek
• Play / Pause / Stop transport controls
• Current position and total duration displayed as HH:MM:SS.mmm
• Optional normalisation toggle
• Supports MP3, WAV, FLAC, OGG, AAC, M4A, OPUS
• Compatible with ComfyUI's native audio pipeline — output connects directly to SaveAudio, PreviewAudio, and other audio nodes

Inputs

| Name | Type | Description | |------|------|-------------| | normalize | BOOLEAN | Normalise waveform amplitude to peak 1.0 (default: false) |

Outputs

| Name | Type | Description | |------|------|-------------| | audio | AUDIO | Waveform tensor + sample rate, compatible with native ComfyUI audio nodes | | sample_rate | INT | Sample rate in Hz | | duration_seconds | FLOAT | Duration in seconds | | metadata | STRING | File info: name, sample rate, channels, samples, size |

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🎧 Audio Player

A rich in-node audio monitor for listening to and analysing audio output from any upstream node. Receives a ComfyUI AUDIO input and displays four switchable visualisation modes, full transport controls, a stereo level meter, and a download menu. Created by qualar.

Visualisation modes — cycle through them with the button in the bottom-right corner:

| Mode | Screenshot | |------|-----------| | Waveform — stereo RMS bar display, left channel in purple, right in orange, playhead scrubbing | | | Spectrum — real-time FFT frequency plot with labelled Hz axis | | | Analyzer — stereo goniometer (phase/width scope) and stereo correlation meter | | | Spectrogram — psychoacoustic heatmap scrolling in real time | |

Transport controls

• Volume slider with mute button
• Skip to start / skip to end
• Play / Pause
• Loop toggle

Download menu — click the ⋮ button to export the audio:

• Download WAV (lossless, original quality)
• Download MP3 at 128 / 192 / 320 kbps (encoded in-browser via lamejs — no server round-trip)
• Download FLAC (lossless compressed, encoded server-side via soundfile)

Stats bar — always visible above the waveform: sample rate, mono/stereo, and integrated LUFS loudness.

Inputs

| Name | Type | Description | |------|------|-------------| | audio | AUDIO | Audio to monitor — connects from any node that outputs AUDIO |

Outputs

None — this is a terminal monitoring node.

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📐 Resolution Master

Pick a standard resolution and orientation and get clean width/height integers out — no more mental arithmetic or hardcoded values.

Features

• Visual orientation selector with landscape, square, and portrait icons
• Covers SD through 8K with accurate pixel dimensions
• Live preview of output width and height inside the node
• Resolution dropdown with all standard presets

Resolution table

| | SD (480p) | 1K (720p) | 1.3K (768p) | 2K (1080p) | 2.5K (1440p) | 4K (2160p) | 8K (4320p) | |-------------|-----------|------------|-------------|------------|--------------|------------|------------| | Landscape | 720×480 | 1280×720 | 1344×768 | 1920×1080 | 2560×1440 | 3840×2160 | 7680×4320 | | Square | 512×512 | 1024×1024 | 1024×1024 | 1536×1536 | 1920×1920 | 2048×2048 | 5760×5760 | | Portrait | 480×720 | 720×1280 | 768×1344 | 1080×1920 | 1440×2560 | 2160×3840 | 4320×7680 |

Outputs

| Name | Type | Description | |------|------|-------------| | width | INT | Output width in pixels | | height | INT | Output height in pixels | | resolution_string | STRING | e.g. 1344x768 |

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✂️ String Extractor

Extract individual lines from a multi-line text block by index, with automatic index advancement for batch workflows.

Features

• Multi-line text input (scrollable, supports paste)
• Integer index selector to choose which line to extract
• Live status bar showing current line preview and mode
• Selected line is highlighted in the textarea
• text and index can optionally be wired from upstream nodes
• Works correctly across scheduled batch runs — advancement happens before each prompt is queued

How the index works

| index value | behaviour | |-------------|-----------| | 0 | Full textarea passed to output unchanged | | 1 to N (valid line) | That line is extracted; a trailing space is added if missing | | Greater than line count | Full textarea passed unchanged; index resets to 0 |

Mode selector

| Mode | Behaviour | |------|-----------| | Keep | Index stays the same after execution | | Increment | Index advances to the next line after each execution; wraps from last line back to 1 | | Randomise | Index is set to a random valid line number after each execution |

The mode selector is disabled when the index is 0 or out of range.

Inputs

| Name | Type | Description | |------|------|-------------| | text | STRING | Multi-line text block (can be wired in or typed directly) | | index | INT | Line to extract, 0 = passthrough (can be wired in or set directly) | | mode | COMBO | Keep / Increment / Randomise |

Outputs

| Name | Type | Description | |------|------|-------------| | text_out | STRING | Extracted line (or full text for index 0 / out of range) | | index_out | INT | Updated index after applying mode |

Typical workflow pattern

Set mode to Increment and queue multiple runs — each run extracts the next line automatically, starting from the displayed index value.

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🔗 String Combine

Concatenate up to 10 string inputs into a single output. All content is preserved exactly — no trimming, no separators added between inputs.

Features

• Up to 10 optional string inputs
• Unconnected inputs are silently ignored
• Strings are joined in order (1 through 10) with no modification
• Add separators or spaces in upstream nodes if needed

Inputs

| Name | Type | Description | |------|------|-------------| | string_1 … string_10 | STRING | Optional string inputs to concatenate |

Outputs

| Name | Type | Description | |------|------|-------------| | combined | STRING | All connected strings joined in order |

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Installation

Via ComfyUI Manager (recommended)

Search for axces2000 in the Custom Nodes section and click Install.

Manual

cd ComfyUI/custom_nodes
git clone https://github.com/axces2000/comfyui-axces2000.git
pip install -r comfyui-axces2000/requirements.txt

Then restart ComfyUI.

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Requirements

• ComfyUI (any recent version)
• torchaudio — for Audio Loader
• soundfile — for Audio Loader (fallback backend) and Audio Player (FLAC export)
• scipy — for Audio Player LUFS metering (optional, falls back to RMS if not present)

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File structure

comfyui-axces2000/
├── __init__.py
├── requirements.txt
├── pyproject.toml
├── Makefile
├── docs/
│   ├── audio_loader.png
│   ├── audio_player_1waveform.png
│   ├── audio_player_2spectrum.png
│   ├── audio_player_3analyzer.png
│   ├── audio_player_4spectrogram.png
│   ├── audio_player_5save.png
│   ├── resolution_master.png
│   ├── string_extractor.png
│   └── string_combine.png
├── audio_loader/
│   ├── __init__.py
│   ├── audio_loader.py
│   └── js/
│       └── audio_loader.js
├── audio_player/
│   ├── __init__.py
│   ├── audio_player_node.py
│   └── js/
│       └── audio_player_widget.js
├── resolution_master/
│   ├── __init__.py
│   ├── resolution_master.py
│   └── js/
│       └── resolution_master.js
├── string_extractor/
│   ├── __init__.py
│   └── string_extractor.py
├── string_combine/
│   ├── __init__.py
│   └── string_combine.py
└── js/
    ├── audio_loader.js
    ├── audio_player_widget.js
    ├── resolution_master.js
    ├── string_extractor.js
    └── lib/
        └── lame.min.js

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Credits

• Audio Player node created by qualar

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License

MIT © axces2000