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Every file task.
One private
toolkit.

Drag and drop to convert videos, images, audio, and documents locally. Files never leave your device.

✓ No uploads✓ No account✓ Works offline

Most Popular File Tools

Fast tools to convert, compress, edit, and organize your files for free.

FileKit Instant Offline
W
120 RULES OF GRA...
Word Document
DOCX
Microsoft Word 14.4 KB
120 R...RAMMAR.docx
File 1: 120 RU...GRAMMAR.docx
14.4 KB • 100% In-Browser
SELECT FORMAT PDF
OFFICE
PDF ✓
WEB & TEXT
HTML
Plain text (TXT)
Markdown (MD)
E-BOOKS
EPUB ebook (EPUB)
Select any output format and convert instantly in your browser
HEIC photo conversion demonstration
HEIC · 4.2 MB
Auto Optimize
PNG JPG WEBP AVIF
Interactive image crop framing demonstration
16:9 · 1920 × 1080
16:9 1:1 9:16 4:3
Local video trimming and extraction demonstration
▶
MOV 4K · 00:42
MP4 WebM GIF MOV
🎵 Podcast_Master_Ep12.flac 320 kbps · 48 kHz
MP3 (320k) WAV M4A AAC
DOCX Annual_Report_2026.docx 12 Pages
PDF HTML EPUB MD
ORIGINAL 14.8 MB
→
OPTIMIZED 2.1 MB -86% Saved
High (-86%) Balanced (-60%) Lossless
<svg> Scalable Vector Paths
Clean Curves High Precision Outline
22.2× SMALLER FILE SIZE
Original: 24.5 MB
Compressed: 1.1 MB
-95.5% Saved
Smart 20x Ultra Shrink Lossless
‹ › 📁 Documents
90+ Offline Tools
Name Date Modified Size Kind
🖼Screenshot 2025-02-23 at 8.09.26 am_converted.jpg Today at 8:47 pm 63 KB JPEG
🖼Screenshot 2025-02-23 at 9.08.33 am_converted.jpg Today at 8:47 pm 134 KB JPEG
🖼Invoice_Contract_Signed_2026.pdf Today at 8:47 pm 53 KB PDF
🖼Product_Hero_Mockup_Export.webp Today at 8:47 pm 23 KB WEBP
🖼Presentation_Deck_Archive.epub Today at 8:47 pm 23 KB EPUB
🖼Vector_Branding_Asset.svg Today at 8:47 pm 133 KB SVG

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Contract_Agreement.pdf Page 1 / 8
✏️ Edit 🔤 Text 🖍️ Highlight ✒️ Sign 📐 Shapes
100% â–¾
MUTUAL NON-DISCLOSURE AGREEMENT
All proprietary files remain private & confidential.
Verified E-Sign

PDF Creator & Suite

Create, annotate, merge, split, and electronically sign PDF documents seamlessly.

Learn more →
Landscape_Studio_Crop.jpg 1920 × 1080 (16:9)
📐 16:9 1:1 4:5 9:16 Free
JPG PNG WEBP
Image cropping studio
16:9 Cinema · 100% Quality

Crop Image

Trim photos to exact aspect ratios, social platform presets, or custom pixel boundaries with live rule-of-thirds grid.

Launch Crop Studio →
Media_Package_4K.zip -86% Saved
Extreme (-86%) Balanced Lossless
Neural Engine
RAW ORIGINAL 14.8 MB
âž”
OPTIMIZED 2.1 MB

Smart File Compressor

Shrink heavy PDFs, videos, and images by up to 90% while preserving crisp quality.

Learn more →
HELP & ANSWERS

Frequently asked questions

Everything you need to know about our local-first offline architecture, file privacy, and supported formats.

Can't find what you're looking for? Contact our support team
What is FileKit?

FileKit is a 100% private, browser-based file workstation. It empowers you to convert, compress, merge, split, edit, crop, and inspect files across PDFs, images, videos, audio, and documents directly on your device without installing software or creating an account.

How does it run locally without uploading my files?

FileKit is powered by modern WebAssembly (WASM) and native browser hardware acceleration. When you drop a file, the processing engine runs inside your browser's local sandbox memory. Zero bytes ever leave your device or touch a remote server.

What formats does it support?

FileKit supports dozens of formats across 6 core categories: PDFs, Images (PNG, JPG, WebP, AVIF, HEIC, SVG, GIF), Videos (MP4, WebM, MOV, GIF), Audio (MP3, WAV, AAC, FLAC, M4A), Documents (Word DOCX, Excel XLSX, PPTX, EPUB, TXT), and Archive bundles (ZIP, TAR).

Can I use it for NDA, confidential, or sensitive files?

Yes. Because files never leave your client device, FileKit is completely compliant with strict confidentiality policies, NDAs, HIPAA, and GDPR standards. Your data is never logged, stored, or inspected by third parties.

Does it work fully offline?

Yes! Once the page has loaded, our progressive service worker caches all essential conversion binaries. You can disconnect your Wi-Fi, turn on airplane mode, and continue working with all your file tools seamlessly.

Is FileKit free, and are there file size caps?

FileKit is 100% free with no forced subscriptions or hidden tiers. Since processing runs on your own device's CPU/GPU rather than costly cloud servers, you don't face arbitrary cloud size limits or wait in artificial upload queues.

Do I need to install any software or extensions?

None at all. FileKit runs in any standard modern web browser (Chrome, Safari, Firefox, Edge, Arc, Brave) across macOS, Windows, Linux, Chromebooks, iPads, and mobile devices.

Plans & Pricing

Free for everyday tasks. Own it forever for unlimited batching, maximum speed, and standalone offline apps.

Free

Basic tools to convert, compress, and edit files right in your browser.

$ 0
Free forever
Convert, compress, and edit files
Up to 10 files per batch
All 197+ format tools included
100% on your device (0 uploads)
No watermarks, no countdown timers
Most Popular

Pro

Advanced features for power users, unlimited batching and max speed.

$ 3 $4.50
Per month, billed monthly
Unlimited files at once (50+ batch)
Multi-core Turbo: Uses all CPU worker threads
600 DPI Master print-ready resolution
Deep compression with custom target KB/MB
Preloaded OCR multi-language dictionaries

Lifetime License

Pay Once

Pay once. Keep it forever on Mac, Windows, and mobile.

$ 14 $120/yr
One-time payment, permanent ownership
macOS Windows Android iOS
Standalone desktop apps for Mac and Windows
Installable mobile apps for iPhone and Android
Works 100% offline with your license key
All Pro capabilities included permanently
Free lifetime updates and engine improvements
Sample offline key: FK-LIFE-782A-94B1-33FC
Already have a lifetime license key?
DETAILED COMPARISON

Compare All Plan Features

See exactly what is included in each tier.

Capability Free Pro ($3/mo) Lifetime ($14 once)
Privacy & Security
File transmission over internetNone (0 bytes)None (0 bytes)None (0 bytes)
Air-gapped offline usageBrowser cacheBrowser cache100% Standalone App
Cryptographic offline license—— Ed25519 Key
Data retention or telemetryZero trackingZero trackingZero tracking
Batching & Performance
Simultaneous batch limitUp to 10 filesUnlimited (50+ files)Unlimited (50+ files)
CPU processing engineStandard 2-threadMulti-core TurboMulti-core Turbo
Maximum output resolution300 DPI high-res600 DPI print master600 DPI print master
Compression modesStandard & BalancedExtreme + Target KBExtreme + Target KB
Tools & Workstations
Access to all 197+ tools Included Included Included
PDF Suite (Edit, Annotate, Sign, Merge) Included Included Included
Background Cutout & Image Studio Included Included Included
Video & Audio Transcoders Included Included Included
OCR Multi-language dictionariesStandard OCRPreloaded packsPreloaded packs
Platforms & Offline Apps
Web browser app
macOS standalone desktop app (.dmg)—— Native App
Windows standalone desktop app (.exe)—— Native App
Android & iOS installable PWA—— Installable App
Free future software updates Lifetime
HELP & ANSWERS

Frequently asked questions

Everything you need to know about our local-first offline architecture, cryptographic licensing, and privacy guarantees.

Can't find what you're looking for? Contact our support team

Why is FileKit a $14 one-time payment instead of a monthly subscription?

Traditional PDF and file web tools process your files on cloud server clusters, incurring heavy recurring compute, bandwidth, and storage bills that they pass on as monthly subscriptions. FileKit runs 100% locally on your computer's CPU using WebAssembly. Because our ongoing cloud compute cost is zero, we pass the savings directly to you with a single lifetime purchase.

Does FileKit really work completely offline?

Yes, absolutely. Once loaded in your browser or installed as a standalone desktop app, every single tool (PDF merging, compression, OCR, conversion, and format editing) executes strictly inside your device's sandbox. You can disconnect your Wi-Fi, enable Airplane mode, or work inside secure air-gapped workstations without interruption.

What happens if I change my computer or use multiple devices?

Your license key is permanent and personal to you. You can activate it across your personal workstations, including macOS, Windows, Linux, and mobile browsers. If you upgrade to a new computer, just re-enter your license key to unlock Pro features instantly.

Are my files or document contents ever uploaded or logged?

Never. Your files never leave your device's memory. FileKit has no document upload endpoints, no remote database, and no telemetry tracking your file contents. Your sensitive financial, legal, and confidential documents remain 100% private to you.

Are updates included, or will I be asked to pay again later?

All future updates, performance upgrades, and new tool additions are included in your lifetime license at no additional charge. There are no surprise renewal fees, tiered upgrade paywalls, or hidden recurring charges.

How does license key activation work without tracking me?

FileKit licenses are verified using an offline mathematical cryptographic checksum directly within your browser or app. It doesn't send telemetry pings, install background daemons, or store tracking cookies. It just unlocks your software cleanly.

Compress PDF for Free

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