Tool

File Size Analyzer

Free browser-based file size analyzer to scan files fast, compare size totals, and spot oversized uploads before sharing or storage limits cause issues.

File Size Analyzer

Check file size, inspect payload composition, validate upload compatibility, and estimate transfer times locally.

Drag & drop files to begin

Select or drag multiple files from your device. Entirely processed locally in your browser memory.

Local Browser Session

Your files stay completely on this device. No background server or cloud upload is required.

✓ Stay Local✓ Zero Uploads✓ Safe Audit

Expected Workflow

1
Select Local Files

Drag files in or click to browse. Any file extension is supported.

2
Immediate Device Analysis

The local engine reads metadata headers in microseconds.

3
Audit Compliance & Export

Identify oversized elements, check platforms, and download a CSV report.

Analytical Capabilities

MIME BreakdownCategory-specific percentages
Size DistributionStatistical density curves
Compliance GuardWordPress & API limit audits
RecommendationsDeterministic optimizations
100% In-Browser

Processed entirely in temporary browser memory

Zero Server Uploads

Your network is never burdened with heavy media uploads

Privacy Safeguarded

No tracking, no storage logs, and no external leakage

Smart Local File Analysis

Private, browser-native file inspection without server dependency.

Analyze multiple files locally in your browser with our fast, offline-ready file size checker and analyzer. Inspect combined payload sizes, check platform upload compatibility, and estimate transfer durations. This tool processes all files locally in your browser session—no file upload is required, and files stay on your device.

Runtime Simulation

Select Files

User selects one or more local files from their device. No upload occurs; SHRTX simply gains access to the local file pointers via the browser's File API.

Runtime Note

Uses standard <input type='file'> or Drag and Drop API. Files stay in browser memory only.

Visual Analysis Workflow

Understand how SHRTX processes your files locally using the browser runtime.

Select Files

Choose files or drag them into the workspace to start analysis.

Read Metadata

The SHRTX Runtime reads local file headers instantly without any uploads.

Payload Analysis

Automated analysis of total volume, largest contributors, and distribution.

Statistics Generated

Real-time category mapping and bandwidth estimation for different networks.

Compatibility Evaluation

Validation against size limits for Gmail, Discord, Slack, and WhatsApp.

Results Dashboard

Detailed dashboard showing aggregated insights and individual file metrics.

Optional Export

Generate a structured CSV report of your analysis for documentation or sharing.

Core Analysis Capabilities

Advanced metadata inspection and platform verification engine.

Combined Payload

Calculates the total sum of all selected file sizes for accurate transfer planning.

Category Breakdown

Groups files into format types like Images, Documents, and Videos automatically.

Platform Checks

Validates sizes against limits for Gmail, Discord, Slack, and WhatsApp.

Transfer Estimates

Predicts upload durations across Mobile 3G, 4G LTE, and Gigabit Fiber speeds.

Educational Supported File Types

Educational Supported File Types

img

Images & Photos

Inspects JPG, PNG, WebP, SVG, AVIF, HEIC, HEIF, BMP, ICO, TIFF, and JFIF. Computes image overhead, file dimensions, and metadata.

pdf

Documents & PDFs

Scans PDF, DOC, DOCX, TXT, RTF, PPT, PPTX, and EPUB files. Identifies format-specific sizes for document portal compliance.

xls

Data Spreadsheets

Analyzes CSV, XLS, XLSX, and MD dataset files. Helps check data size for bulk ingestion or analytics processing.

mp4

Audio & Video Media

Identifies MP4, WEBM, MKV, AVI, MP3, WAV, FLAC, and AAC files. Calculates transfer times for heavyweight rich media.

zip

Archives & Packages

Detects ZIP, RAR, 7Z, TAR, and GZ compressed files. Evaluates backup or bulk upload bundle payload sizes.

File Size Checks vs Payload Diagnostics

Discover how deep browser inspection provides more value than basic file checks.

Property
Basic File Size Check
Upload Payload Diagnostics
Analysis Scope
Single file check
Bulk batch analysis
Focus Area
Byte length check only
Platform limits, bandwidth, distribution
File Classification
None
Automatic category & extension mapping
Limit Validation
No platform limits checked
Validates Gmail, Discord, Slack, WhatsApp Web, and GitHub Web
Planning Assistance
Manual calculation
Transfer duration estimator (3G to Gigabit Fiber)
Actionable Outputs
Informational only
Exportable CSV reports, local optimization workflow triggers

Practical Use Cases & Scenarios

Understand when to use file payload analysis for optimal digital transfer.

Email Attachment Preparation

Validate your files against Gmail's 25 MB total limit before hitting send to prevent bouncing.

Media Chat Compression Check

Spot oversized video or audio files that exceed Discord or WhatsApp Web limits before attempting uploads.

CMS Content Publishing

Analyze WordPress media payloads to identify massive raw images that should be converted to WebP.

Technical Deployment Audits

Inspect static assets or documentation release zip files for duplicate names and massive files.

Privacy & Secure Local Session

Privacy & Secure Local Session

This file size checker runs entirely in your web browser. No files are uploaded to SHRTX servers. All scanning, statistics aggregation, and export operations happen locally in your browser session. This approach supports privacy-conscious local analysis and keeps your data completely within your browser.

Frequently Asked Questions

Q:How do I check file size online without uploading files?

Select or drag files into the workspace. The browser reads the local file metadata using standard File APIs. It reports precise sizes and largest contributors instantly without transferring files online.

Q:Can I compare multiple file sizes in one batch?

Yes. You can add multiple files to the workspace. The tool ranks them from largest to smallest, breaks them down by file extension category, and displays their percentage share of the total payload.

Q:What file formats are supported by this checker?

This tool supports all file types. It categorizes files into common buckets like Images, Documents (including PDFs and spreadsheets), Audio/Video media, and Archives for streamlined payload inspection.

Q:Does this tool validate upload limits before I send files?

Yes. It compares your total batch size and individual file sizes against upload limits for major platforms including Gmail, Discord, Slack, WhatsApp Web, and GitHub Web.

Q:How does the transfer estimator calculate upload times?

It applies standard bandwidth formulas to your file size total against typical connection speeds (from Mobile 3G and 4G LTE to Wi-Fi and Gigabit Fiber) to predict real-world transfer durations.

Q:Can I export a report of my analyzed files?

Yes. Click 'Export CSV Report' to download a structured spreadsheet containing filenames, exact byte sizes, human-readable file sizes, and payload percentages, generated entirely in your browser.

Q:Is this a disk cleanup or folder scanner tool?

No. This tool is a focused web-based file size checker. It only scans the specific files you choose to select or drag in. It cannot access your drive directory structures or scanning device storage.

Q:How can I reduce my upload size if a compatibility check fails?

If your files exceed platform limits, you can optimize them locally. For large photos, you can use our Image to WebP Converter to compress images by up to 80% without losing quality before uploading.

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