Hex Viewer Online
Free hex viewer online. Drop any file to see its bytes as hex and text, with a data inspector, find, go to offset and a structure view for ZIP, PNG, ELF, PE and 22 more formats. The file never leaves your browser.
Free browser tools
Each tool opens your file inside the browser tab. Nothing is uploaded, and the tools keep working offline once loaded.
DOCX Viewer Online
Free DOCX viewer online. Drop a Word .docx or .odt file to read it as pages, with find, zoom, print and a dark mode. The file never leaves your browser and nothing is uploaded.
Excel Viewer Online
Free Excel viewer online. Drop an .xlsx, .xls, .ods, .csv or .parquet file to see it as a sortable table with sheet tabs and find. The file never leaves your browser and nothing is uploaded.
CSV Viewer Online
Free CSV viewer online. Drop a .csv or .tsv file, even one of 1,000,000 rows, to see it as a sortable table with find. The separator and encoding are found for you, and the file never leaves your browser.
PPTX Viewer Online
Free PPTX viewer online. Drop a PowerPoint .pptx, .ppsx or .potx file to see its slides, with zoom, find, print and a dark mode. The file never leaves your browser and nothing is uploaded.
SQLite Viewer Online
Free SQLite viewer online. Drop a .db, .sqlite or .sqlite3 file to browse its tables, filter and sort rows, see the schema and run SQL queries. The database never leaves your browser.
PDF Dark Mode Viewer
Free PDF dark mode viewer. Drop a PDF to read it with dark pages that keep photos in their true colors, or sepia pages, with search, outline, thumbnails and highlights. The file never leaves your browser.
DXF Viewer Online
Free DXF viewer online. Drop a .dxf file to see the drawing with layers, paper space sheets, hatches, measure, find text and PNG or SVG export. ASCII and binary DXF. The file never leaves your browser.
SVG to PNG Converter
Free SVG to PNG converter. Drop one or many SVG files, pick 1x to 8x or a width in pixels and a transparent or solid background, and download each PNG or all of them as a ZIP. Nothing is uploaded.
EPUB Reader Online
Free EPUB reader online. Drop an .epub ebook to read it paged or scrolled, with the table of contents, search, footnote popups and light, sepia or dark themes. The book never leaves your browser.
Mermaid Editor Online
Free Mermaid editor online with a live preview. Write flowcharts, sequence, class, ER, Gantt, mind map, C4 and other Mermaid diagrams, then save PNG or SVG. Your code stays in this browser; share links carry it after the #.
STL Viewer Online
Free STL viewer online. Drop an STL, OBJ, PLY, GLB, glTF or 3MF file to turn, zoom and measure the 3D model, with wireframe, normals, the scene tree, animations and a PNG screenshot. Nothing is uploaded.
Graphviz Online
Free Graphviz online editor. Type DOT code and see the graph laid out live with dot, neato, fdp, sfdp, circo or twopi, with error lines, zoom and SVG or PNG export. Your graph stays in this browser.
DICOM Viewer Online
Free DICOM viewer online. Open a DICOM file, a whole CT or MRI series or a NIfTI volume to scroll slices, set window and level, see axial, coronal and sagittal views and every DICOM tag. Nothing is uploaded.
EML Viewer Online
Free EML viewer online. Drop an .eml, .emlx or .mbox file to read the mail as it was sent, with attachments, headers, the route and SPF, DKIM and DMARC results. Remote pictures stay blocked, and nothing is uploaded.
NPY and NPZ Viewer Online
Free NPY and NPZ viewer online. Drop a NumPy .npy or .npz file to see the shape, dtype, stats and first rows of each array, with a line chart, histogram or heatmap. No Python, and the file never leaves your browser.
Parquet Viewer Online
Free Parquet viewer online. Drop a .parquet file to see its schema, row groups, compression and first 1,000 rows as a table you can sort. Snappy, gzip, zstd, brotli and lz4. The file never leaves your browser.
HDF5 and NetCDF Viewer Online
Free HDF5 and NetCDF viewer online. Drop an .h5, .hdf5 or .nc file to browse its groups, datasets and attributes, see the first values and plot a line or heatmap. No Python, and the file never leaves your browser.
TIFF Viewer Online
Free TIFF viewer online. Drop a .tif or .tiff file to see every page, 16-bit and float images with auto contrast, pixel values, GeoTIFF coordinates and all tags. The file never leaves your browser.
HAR Viewer Online
Free HAR viewer online. Drop a .har file from DevTools to see every request in a table with a timing waterfall, failed and slow counts, headers, payload, response and cookies. The file never leaves your browser.
JSONL Viewer Online
Free JSONL viewer online. Drop a .jsonl, .ndjson or .jsonl.gz file to see it as a table with one column per key, sort, find, bad lines, key stats and chat records. The file never leaves your browser.
Video File Info Online
Free video file info online. Drop an MP4, MOV, MKV, WebM or AVI file to see its codecs, resolution, frame rate, frame count, bitrates, audio channels and metadata, then play it and save a frame as PNG. The file never leaves your browser.
VCD Viewer Online
Free VCD viewer online. Drop a .vcd file from Icarus Verilog, Verilator, Vivado, ModelSim or GHDL to see the waveforms, the value of every signal at the cursor, markers, and hex, binary or decimal buses. The file never leaves your browser.
G-code Viewer Online
Free G-code viewer online. Drop a .gcode or .nc file to see the toolpath layer by layer, colored by feature or speed, with print time, filament length and weight, and the line behind any move. The file never leaves your browser.
RST Preview Online
Free RST preview online. Drop a .rst file to see it rendered, with an outline of its sections and a list of problems such as short title underlines, broken tables and unknown directives. No Python, and the file never leaves your browser.
GeoJSON Viewer Online
Free GeoJSON viewer online. Drop a .geojson, TopoJSON, KML, GPX, WKT or CSV file to see it on a map, click a feature for its properties and browse every feature in a table. The file never leaves your browser.
RTF Viewer Online
Free RTF viewer online. Drop a .rtf file to read it as pages with its fonts, colors, tables, pictures, headers and footers, with find, an outline and a dark mode. No Word needed, and the file never leaves your browser.
Linker Map Viewer Online
Free linker map file viewer online. Drop a .map file from GNU ld, LLVM lld, IAR or Keil to see memory region bars and sortable tables of sections, object files, libraries and symbols. The file never leaves your browser.
Image Resize and Crop Online
Free image resizer and cropper online. Crop with a box or a ratio (1:1, 4:3, 16:9 and more), resize by pixels or percent, rotate and flip, and save as PNG, JPEG or WebP. The image never leaves your browser.
HTML Preview Online
Free HTML viewer online. Open an .html file, or its whole folder, to see the page with its CSS, images and fonts, at phone, tablet or desktop width, plus its title, meta tags, headings, links and source. Nothing is uploaded.
SQL Formatter Online
Free SQL formatter online for PostgreSQL, MySQL, T-SQL, PL/SQL, SQLite and 15 more dialects. Paste SQL or open a .sql file. Every result is checked token by token, so strings, comments and $$ bodies never change. Nothing is uploaded.
Text Diff Online
Free text diff online. Open two files or paste two texts to see every changed line side by side or inline, with the changed words marked. Ignore whitespace or case, jump between changes and save a .patch. Nothing is uploaded.
AGENTS.md and CLAUDE.md Linter Online
Free AGENTS.md and CLAUDE.md linter online. Check an agent instruction file against your repo: scripts that are gone, moved files, broken @imports, the wrong package manager or Node version, and the Codex 32 KiB limit. Files never leave your browser.
JavaScript Playground Online
Free JavaScript and TypeScript playground online. Type code and press Run to see the value of each line next to it, with console.log output and errors on their lines. It runs in a sandbox in your browser, with no sign-up.
APK Analyzer Online
Free APK analyzer online. Drop an .apk, .aab, .apks or .xapk file to read the decoded AndroidManifest.xml, permissions, exported components, DEX method counts against the 65,536 limit, size by folder and the signing certificate. The file never leaves your browser.
Code Screenshot Online
Free code screenshot tool online. Paste code or open a source file to get a picture of it with syntax colors, line numbers, a window frame and a gradient background. Copy or save it as PNG at 1x to 4x, or as SVG. Your code never leaves your browser.
DBC Viewer Online
Free DBC viewer online. Open a CAN .dbc file to see every message and signal, the bit layout of each frame, value tables and attributes, check it for overlapping bits and decode a frame. The file never leaves your browser.
Regex Tester Online
Free regex tester online. Type a regular expression and see every match highlighted in your text, a table with one column per group, a replace preview and a plain-words explanation. Load a log file; it never leaves your browser.
SARIF Viewer Online
Free SARIF viewer online. Open a .sarif log from CodeQL, Semgrep, ESLint, Bandit, Trivy or Gitleaks to see the results grouped by rule or file, with filters, code flow steps, rule help and CWE links. The log never leaves your browser.
Intel HEX Viewer Online
Free Intel HEX and S-record viewer online. Open a .hex, .ihex, .s19 or .srec firmware image to see its memory map, gaps and overlaps, a hex view by address and a data inspector, with every record checked. The file never leaves your browser.
EDI Viewer Online
Free EDI viewer online. Open an X12 or EDIFACT file (850, 810, 856, 837, ORDERS, INVOIC, DESADV) to read it as a tree with element names and code meanings, and check its control numbers and counts. The file never leaves your browser.
The same viewers run inside VS Code and Cursor. See all Zovo extensions.