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Omni Viewer

by battlecook
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Description

A desktop-only Obsidian plugin for previewing, editing, and sharing many file formats directly inside your vault.

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Latest Version

0.7.0
3 days ago

Changelog

Added

  • Added a TFLite/LiteRT viewer for .tflite and .lite on desktop and mobile, backed by omni-viewer-core: graph topology with node inspection and searchable operator/tensor/input-output tables. The FlatBuffer metadata is inspected without decoding model weights.
  • Content-signature rerouting now recognises the TFL3 FlatBuffer identifier, so TFLite models open in the TFLite viewer regardless of their extension.

Changed

  • Updated omni-viewer-core from 0.13.0 to 0.15.0, pinned to an exact version.
See all version on GitHub

README file from

Github

Omni Viewer for Obsidian

Obsidian port of the vscode-omni-viewer extension. View (and in some cases edit) a wide range of file formats directly inside Obsidian.

Supported formats

Category Extensions
Archive zip, rar, 7z, dmg, jar, apk, tar, tgz, gz, tbz2, bz2, txz, xz
Audio mp3, wav, pcm, aiff, aif, aifc, amr, awb, ogg, flac, ac3, aac, m4a
Video mp4, mts, m2ts, avi, mov, wmv, flv, webm, mkv
Image jpg, jpeg, png, gif, bmp, webp, svg
Tabular csv, tsv, xlsx, xls, parquet, jsonl/ndjson/jsonlines
Automotive / measurement dbc, arxml, a2l, asc, blf, mf4, avro, bag (ROS), db3 (SQLite), reqif, pcap, pcapng, stp/step, h5/hdf5/he5, mat
Documents pdf (view + annotate/merge/save), docx/doc, ppt/pptx, hwp/hwpx, psd, md/markdown, tex/latex/ltx
Data / source safetensors, gguf, onnx, tflite/lite, json, yaml/yml, toml, proto, mmd/mermaid, puml/plantuml/iuml
GIS shp (Shapefile)

Features carried over from the vscode extension

  • Audio player with waveform/spectrogram (WASM-accelerated analysis for large files), regions, and region export.
  • Image viewer/editor with filters and annotation tools; filtered images can be saved into the vault.
  • PDF editor: text, stamps, signatures, page reorder, merge with another PDF, save / save-as.
  • CSV editor: cell editing writes back to the file.
  • LaTeX structure and math preview: outline, source editing, tables, theorem blocks, KaTeX formulas, and vault-backed \\input/\\include resolution. It is a partial preview, not a TeX compiler or typeset PDF.
  • ML model inspection: ONNX and TFLite/LiteRT graph topology with searchable operator/tensor/IO tables and node inspection; GGUF metadata, tensor index, and quantization summary read without touching the tensor payload.
  • Content-signature rerouting: files whose content doesn't match their extension are opened with the right viewer automatically.
  • Share: upload a copy of the selected file to Omni Viewer's external share service (max 10 MB, 5-minute expiry) and copy the share link; open a shared link to download it into the omni-viewer-shared vault folder. See the Privacy Policy for details.
  • Refresh command to re-render the active viewer.

How viewers are activated

Obsidian core already handles some extensions (md, pdf, images, audio, video, …). For those, this plugin cannot take over the default view; use the file context menu → Open with … Viewer instead. All other extensions (csv, zip, parquet, dbc, hwp, xlsx, …) open with Omni Viewer by default.

Commands (Cmd/Ctrl-P):

  • Omni Viewer: Refresh viewer
  • Omni Viewer: Share current file
  • Omni Viewer: Open shared link

Installation (manual / development)

npm install
npm run build

Then copy the following into <vault>/.obsidian/plugins/omni-viewer/:

  • main.js
  • manifest.json
  • styles.css

The viewer templates, bundled JavaScript, and WASM assets are embedded into main.js during npm run build, so no extra asset folders are required.

Enable Omni Viewer in Settings → Community plugins. The same bundle runs on desktop, Android, and iOS.

Mobile support

On Obsidian mobile, Omni Viewer uses vault APIs instead of local filesystem paths. Mobile currently supports:

  • ZIP/JAR/APK, audio/image/browser-native video, CSV, PDF, Safetensors, ONNX, TFLite/LiteRT, JSON/JSONL, YAML, TOML, DBC
  • Markdown, LaTeX, Mermaid, PlantUML, Protocol Buffer schemas
  • XLS/XLSX, DOCX, HWP/HWPX, PPT/PPTX

GGUF is desktop-first: models are inspected through filesystem range reads, so on mobile only files below 512 MB open (they have to be read into memory in full).

Files created by Save As, PDF merge selection, and archive extraction stay inside the current vault. Desktop-only native helpers are intentionally unavailable on mobile: RAR/7z/DMG/system-tar extraction, ffmpeg transcoding, LibreOffice PDF fallback, and legacy DOC rendering. Browser codec support can differ between Android and iOS.

Architecture notes

Each viewer is a FileView hosting a sandboxed iframe that renders the same self-contained HTML templates as the vscode extension. A small bridge shim emulates acquireVsCodeApi() inside the iframe, so template code runs unmodified; messages (saveChanges, savePdf, loadMoreParquet, …) are handled with Obsidian/vault APIs. vscode --vscode-* CSS variables are mapped to the active Obsidian theme at render time.

License

MIT

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