OmniViewer opens any file — JSON, MP3, PNG, CSV and more — right in your browser.
Nothing is uploaded; every byte stays on your device.
This page maps every format and the tabs each one gets, and indexes every article we've written.
Follow a link to a tool or an article, or load a file below to jump straight in.
omniviewer.org — format & feature map
Every file gets the byte-window view (EDIT for text, RAW for binary) + HEX.
Some formats get a dedicated toolkit (extra tabs),
shown in render order. Actions on any loaded file: open · download · share · close.
Every slug, tab and landing page below is a link; (sample) opens it
on a real shipped file. Generated from formats.yaml.
Find (Cmd/Ctrl+F) is scoped to the tab you are on:
[find] Omni searches that tab
[no find] the browser keeps its own Find
[conditional] the tab only appears when the file warrants it
[text only] EDIT/RAW: searchable when the bytes sniff as text
The last section indexes all 49 deep-dive articles.
omniviewer.org
├── (default) · any file
│ ├── EDIT [find] [text only]
│ ├── HEX [no find]
│ ├── STRINGS [find] [binary only]
│ └── DIFF [find] [text only] [every file]
├── toolkits
│ ├── /json · .json (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── FORMATTED [find] (sample)
│ │ ├── YAML [find] (sample)
│ │ ├── CSV [find] [conditional] (sample)
│ │ ├── GRAPH [no find] [conditional] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /har · .har
│ │ ├── EDIT [find] [text only]
│ │ ├── FORMATTED [find]
│ │ ├── YAML [find]
│ │ ├── CSV [find] [conditional]
│ │ ├── HEX [no find]
│ │ └── STATS [find]
│ ├── /jsonl · .jsonl .ndjson +planned .ldjson .jsonlines (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── RECORDS [find] (sample)
│ │ ├── CSV [find] (sample)
│ │ ├── JSON [find] (sample)
│ │ ├── SCHEMA [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /js · .js .mjs .cjs +planned .ts .tsx .jsx .mts .cts (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── FORMATTED [find] (sample)
│ │ ├── COMPRESSOR [find] (sample)
│ │ ├── DEOBFUSCATOR [find] (sample)
│ │ ├── OBFUSCATOR [find] (sample)
│ │ ├── IMAGE [no find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /csv · .csv .tsv (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── FORMATTED [find] (sample)
│ │ ├── JSON [find] (sample)
│ │ ├── SQLITE [no find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /mp3 · .mp3 (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── HEX [no find] (sample)
│ │ ├── PLAYER [no find] (sample)
│ │ ├── STUDIO [no find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── EXPORT [no find] (sample)
│ │ ├── STATS [find] (sample)
│ │ ├── TRANSCRIBE [no find] [conditional] (sample)
│ │ ├── CLEAN-METADATA-BATCH [not a screen]
│ │ ├── PLAYLIST [not a screen]
│ │ └── WAVEFORM [not a screen]
│ ├── /wav · .wav (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── HEX [no find] (sample)
│ │ ├── PLAYER [no find] (sample)
│ │ ├── SPECTRUM [no find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── CHUNKS [find] (sample)
│ │ ├── STATS [find] (sample)
│ │ ├── TRANSCRIBE [no find] [conditional] (sample)
│ │ ├── CLEAN-METADATA-BATCH [not a screen]
│ │ ├── PLAYLIST [not a screen]
│ │ └── WAVEFORM [not a screen]
│ ├── /ogg · .ogg .oga .opus .spx (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── HEX [no find] (sample)
│ │ ├── PLAYER [no find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── PAGES [find] (sample)
│ │ ├── STATS [find] (sample)
│ │ ├── CLEAN-METADATA-BATCH [not a screen]
│ │ └── PLAYLIST [not a screen]
│ ├── /mp4 · .mp4 .m4v .mov (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── HEX [no find] (sample)
│ │ ├── PLAYER [no find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── BOXES [find] (sample)
│ │ ├── GIF [no find] [conditional] (sample)
│ │ ├── STATS [find] (sample)
│ │ ├── CLEAN-METADATA-BATCH [not a screen]
│ │ └── PLAYLIST [not a screen]
│ ├── /m4a · .m4a
│ │ ├── EDIT [find] [text only]
│ │ ├── HEX [no find]
│ │ ├── PLAYER [no find]
│ │ ├── METADATA [find]
│ │ ├── BOXES [find]
│ │ ├── STATS [find]
│ │ ├── CLEAN-METADATA-BATCH [not a screen]
│ │ └── PLAYLIST [not a screen]
│ ├── /mpg · .mpg .mpeg .mpe .mpv .m1v .m2v .vob +planned .m2ts .mts (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── HEX [no find] (sample)
│ │ ├── PREVIEW [no find] (sample)
│ │ ├── CONVERT [no find] (sample)
│ │ ├── PACKS [find] (sample)
│ │ ├── STATS [find] (sample)
│ │ └── PLAYLIST [not a screen]
│ ├── /png · .png (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── HEX [no find] (sample)
│ │ ├── PREVIEW [no find] (sample)
│ │ ├── MODIFY [no find] (sample)
│ │ ├── COMPRESS [no find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── CHUNKS [find] (sample)
│ │ ├── SECRET [no find] (sample)
│ │ ├── STATS [find] (sample)
│ │ ├── CLEAN-METADATA-BATCH [not a screen]
│ │ └── SLIDESHOW [not a screen]
│ ├── /svg · .svg (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── PREVIEW [no find] (sample)
│ │ ├── FORMATTED [find] (sample)
│ │ ├── OPTIMIZE [find] (sample)
│ │ ├── TREE [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /mdx · .mdx (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── PREVIEW [find] (sample)
│ │ ├── COMPONENTS [find] (sample)
│ │ ├── FORMATTED [find] (sample)
│ │ ├── TOC [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /css · .css .scss .less (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── FORMATTED [find] (sample)
│ │ ├── MINIFY [find] (sample)
│ │ ├── SELECTORS [find] (sample)
│ │ ├── COLORS [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /jpg · .jpg .jpeg .jfif .jpe (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── HEX [no find] (sample)
│ │ ├── PREVIEW [no find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── SEGMENTS [find] (sample)
│ │ ├── STATS [find] (sample)
│ │ ├── CLEAN-METADATA-BATCH [not a screen]
│ │ └── SLIDESHOW [not a screen]
│ ├── /heic · .heic .heif (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── HEX [no find] (sample)
│ │ ├── PREVIEW [no find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── ITEMS [find] (sample)
│ │ ├── STATS [find] (sample)
│ │ ├── CLEAN-METADATA-BATCH [not a screen]
│ │ └── SLIDESHOW [not a screen]
│ ├── /dmg · .dmg .smi .img .dmgpart (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── PARTITIONS [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /gguf · .gguf (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── ARCHITECTURE [find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── TENSORS [find] (sample)
│ │ ├── TOKENIZER [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /wasm · .wasm (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── WAT [find] (sample)
│ │ ├── INTERFACE [find] (sample)
│ │ ├── SECTIONS [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /pdf · .pdf (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── TEXT [find] (sample)
│ │ ├── OUTLINE [find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── IMAGES [no find] (sample)
│ │ ├── OBJECTS [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /parquet · .parquet (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── SCHEMA [find] (sample)
│ │ ├── ROWGROUPS [find] (sample)
│ │ ├── TABLE [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /sqlite · .sqlite .sqlite3 .db3 .s3db .sl3 (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── TABLES [no find] (sample)
│ │ ├── QUERY [no find] (sample)
│ │ ├── ERD [no find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /zip · .zip .jar .war .apk .ipa .xlsx .pptx .epub .whl .xpi .crx .nupkg (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── ENTRIES [find] (sample)
│ │ ├── AUDIT [find] (sample)
│ │ ├── VERIFY [find] (sample)
│ │ ├── STRUCTURE [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /gz · .gz .tgz .gzip .taz (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── MEMBERS [find] (sample)
│ │ ├── ENTRIES [find] [conditional] (sample)
│ │ ├── BLOCKS [find] (sample)
│ │ ├── VERIFY [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /docx · .docx .docm .dotx .dotm (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── DOCUMENT [find] (sample)
│ │ ├── TEXT [find] (sample)
│ │ ├── MARKDOWN [find] (sample)
│ │ ├── OUTLINE [find] (sample)
│ │ ├── REVISIONS [find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── IMAGES [no find] (sample)
│ │ ├── PARTS [find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /pvt · .pvt (sample)
│ │ ├── EDIT [find] [text only] (sample)
│ │ ├── LIVE [no find] (sample)
│ │ ├── MEMBERS [find] (sample)
│ │ ├── METADATA [find] (sample)
│ │ ├── EXPORT [no find] (sample)
│ │ ├── HEX [no find] (sample)
│ │ └── STATS [find] (sample)
│ ├── /diff · two files · no extension
│ │ ├── TXT [no find]
│ │ └── BIN [no find]
│ ├── /camera · live device · no file
│ │ ├── PREVIEW [no find]
│ │ ├── MIRROR [no find]
│ │ ├── CAPABILITIES [no find]
│ │ └── TRANSFORM [no find]
│ └── /voice · live device · no file
│ ├── RECORD [no find]
│ ├── CAPABILITIES [no find]
│ └── TRANSFORM [no find]
├── landing pages
│ ├── /camera/transform
│ ├── /camera/mirror
│ ├── /voice/record
│ ├── /voice/transform
│ ├── /diff/txt
│ ├── /diff/bin
│ ├── /mp3/metadata (sample)
│ ├── /mp3/convert (sample)
│ ├── /mp3/export (sample)
│ ├── /mp3/artwork (sample)
│ ├── /mp3/player (sample)
│ ├── /mp3/cut (sample)
│ ├── /mp3/studio (sample)
│ ├── /mp3/hex (sample)
│ ├── /mp3/stats (sample)
│ ├── /png/metadata (sample)
│ ├── /png/resize (sample)
│ ├── /png/crop (sample)
│ ├── /png/modify (sample)
│ ├── /png/compress (sample)
│ ├── /png/preview (sample)
│ ├── /png/chunks (sample)
│ ├── /png/secret (sample)
│ ├── /png/hex (sample)
│ ├── /png/stats (sample)
│ ├── /jpg/metadata (sample)
│ ├── /jpg/segments (sample)
│ ├── /jpg/preview (sample)
│ ├── /jpg/hex (sample)
│ ├── /jpg/stats (sample)
│ ├── /json/format (sample)
│ ├── /json/formatted (sample)
│ ├── /json/validate (sample)
│ ├── /json/graph (sample)
│ ├── /json/yaml (sample)
│ ├── /json/csv (sample)
│ ├── /json/hex (sample)
│ ├── /json/stats (sample)
│ ├── /json/edit (sample)
│ ├── /csv/formatted (sample)
│ ├── /csv/json (sample)
│ ├── /csv/sqlite (sample)
│ ├── /csv/hex (sample)
│ ├── /csv/stats (sample)
│ ├── /csv/edit (sample)
│ ├── /js/formatted (sample)
│ ├── /js/compressor (sample)
│ ├── /js/deobfuscator (sample)
│ ├── /js/obfuscator (sample)
│ ├── /js/image (sample)
│ ├── /js/hex (sample)
│ ├── /js/stats (sample)
│ ├── /js/edit (sample)
│ ├── /mpg/convert (sample)
│ ├── /mpg/mp4 (sample)
│ ├── /mpg/gif (sample)
│ ├── /mpg/preview (sample)
│ ├── /mpg/packs (sample)
│ ├── /mpg/hex (sample)
│ ├── /mpg/stats (sample)
│ ├── /mp4/player (sample)
│ ├── /mp4/metadata (sample)
│ ├── /mp4/boxes (sample)
│ ├── /mp4/gif (sample)
│ ├── /mp4/hex (sample)
│ ├── /mp4/stats (sample)
│ ├── /wav/spectrum (sample)
│ ├── /wav/spectrogram (sample)
│ ├── /wav/metadata (sample)
│ ├── /wav/player (sample)
│ ├── /wav/chunks (sample)
│ ├── /wav/hex (sample)
│ ├── /wav/stats (sample)
│ ├── /docx/revisions (sample)
│ ├── /docx/clean (sample)
│ ├── /docx/markdown (sample)
│ ├── /docx/text (sample)
│ ├── /docx/images (sample)
│ ├── /docx/hex (sample)
│ ├── /docx/stats (sample)
│ ├── /zip/entries (sample)
│ ├── /zip/extract (sample)
│ ├── /zip/audit (sample)
│ ├── /zip/verify (sample)
│ ├── /zip/structure (sample)
│ ├── /zip/hex (sample)
│ ├── /zip/stats (sample)
│ ├── /gz/entries (sample)
│ ├── /gz/verify (sample)
│ ├── /dmg/partitions (sample)
│ ├── /dmg/metadata (sample)
│ ├── /dmg/hex (sample)
│ ├── /dmg/stats (sample)
│ ├── /gguf/architecture (sample)
│ ├── /gguf/metadata (sample)
│ ├── /gguf/tensors (sample)
│ ├── /gguf/tokenizer (sample)
│ ├── /gguf/hex (sample)
│ ├── /gguf/stats (sample)
│ ├── /wasm/wat (sample)
│ ├── /wasm/interface (sample)
│ ├── /wasm/sections (sample)
│ ├── /wasm/hex (sample)
│ ├── /wasm/stats (sample)
│ ├── /heic/metadata (sample)
│ ├── /heic/items (sample)
│ ├── /heic/preview (sample)
│ ├── /heic/hex (sample)
│ ├── /heic/stats (sample)
│ ├── /ogg/metadata (sample)
│ ├── /ogg/pages (sample)
│ ├── /ogg/player (sample)
│ ├── /ogg/hex (sample)
│ └── /ogg/stats (sample)
├── groups
│ ├── text · txt log text → EDIT · READ · TOKENS · HEX · STATS
│ ├── markdown · md markdown mdown mkd → EDIT · PREVIEW · FORMATTED · HTML · TOC · HEX · STATS (sample)
│ ├── yaml · yaml yml → EDIT · FORMATTED · JSON · TREE · HEX · STATS (sample)
│ ├── xml · xml rss atom xsd xsl xslt plist → EDIT · FORMATTED · JSON · TREE · XPATH · HEX · STATS (sample)
│ ├── mermaid · mmd mermaid → EDIT · DIAGRAM · IMAGE · FORMATTED · AUDIT · JSON · HEX · STATS · HELP (sample)
│ ├── data · json csv tsv toml jsonl ndjson har → EDIT · HEX · STATS (sample)
│ ├── markup · html htm xhtml → EDIT · FORMATTED · COMPRESSED · JSON · HEX · STATS
│ ├── audio · mp3 wav flac ogg aac → EDIT · HEX · EDIT-METADATA · CLEAN-METADATA-BATCH · PLAYLIST (sample)
│ ├── video · mp4 webm mov mkv mpg mpeg m2v vob → EDIT · HEX · EDIT-METADATA · CLEAN-METADATA-BATCH · PLAYLIST (sample)
│ ├── image · png jpg jpeg gif webp heic svg → EDIT · HEX · EDIT-METADATA · CLEAN-METADATA-BATCH · SLIDESHOW (sample)
│ └── archive · zip tar gz br zst dmg → EDIT · HEX (sample)
└── articles
├── algorithm
│ └── How we auto-detect the format of pasted text
├── camera
│ ├── What your browser knows about your camera — asked, supported, got
│ └── Learn maths and programming with a photo booth
├── chart
│ └── How to make a Sankey chart in seconds
├── css
│ └── How CSS parsing & specificity work — a dependency-free tokenizer
├── diff
│ └── How to diff two huge files in a browser
├── dmg
│ └── Inside a DMG: the koly trailer, block maps & how a UDIF disk image works
├── docx
│ ├── How Word stores your document — and what it remembers
│ └── The identifier Word stamps on every paragraph
├── gguf
│ └── Inside a GGUF file: metadata, tensors & quantization
├── gz
│ └── Inside a gzip file — DEFLATE blocks, members and the walker that…
├── heic
│ ├── Inside a HEIC file: boxes, items & HEVC
│ └── Two hidden identifiers in iPhone HEIC metadata — and how we remove them
├── jpg
│ └── Inside a JPEG: markers, EXIF & the quantization tables
├── json
│ └── How to diff two JSON files
├── jsonl
│ └── What is a .jsonl file? JSON Lines and NDJSON explained
├── mdx
│ ├── How to audit a 20 GB MDX file
│ └── What is an MDX file? Markdown with components, explained with examples
├── mermaid
│ └── How Mermaid diagrams are drawn
├── mp3
│ ├── Anatomy of an MP3 file — frame headers, ID3 tags & the MPEG versions
│ ├── AAC, M4A & the licensing catch
│ └── FFmpeg in your browser
├── mp4
│ ├── Inside an MP4: boxes, moov vs mdat & why your video won't stream
│ └── How we built a fast, private GIF exporter
├── mpg
│ └── How to open an MPEG file with no index
├── ogg
│ └── Inside an Ogg file: pages, packets & codecs
├── parquet
│ └── How to read a 20 GB Parquet file
├── pdf
│ ├── How a PDF works — objects, the cross-reference table & streams
│ ├── Extract text from a PDF — why copy-paste breaks, and how to fix it
│ └── Pull the figures, tables & metadata out of a PDF
├── png
│ ├── Inside a PNG: chunks, CRCs & the metadata your image is hiding
│ ├── Compress your PNG — local and secure
│ └── How the SECRET tab hides a message without changing a single byte
├── pvt
│ ├── What is a .pvt file? Apple Live Photo packages, byte by byte
│ └── How a Live Photo stores your location twice
├── sqlite
│ ├── How to open a 20 GB SQLite database in the browser
│ ├── SQLite INTEGER explained — storage, rowid, limits & examples
│ ├── SQLite TEXT explained — UTF-8, VARCHAR(n), collations, limits & examples
│ ├── SQLite REAL explained — 8-byte floats, precision, limits & examples
│ ├── SQLite BLOB explained
│ └── SQLite NUMERIC explained
├── svg
│ └── Inside an SVG file: XML, paths, viewBox & a dependency-free optimizer
├── voice
│ └── What the browser does to your voice
├── wasm
│ └── Inside a WASM module: sections & the binary format
├── wav
│ └── Why a WAV file can’t be bigger than 4 GB · OmniViewer
├── xml
│ └── How to read a 20 GB XML file
├── yaml
│ └── How to read a 20 GB YAML file
└── zip
├── Inside a ZIP file
└── Everything you can do with a ZIP file
2 default tabs · 30 toolkits · 114 landing pages · 11 format groups · 49 articles