100% Local & In-Browser WebAssembly Processing

Universal File Conversion, Zero Privacy Compromise

Convert PDFs, images, audio, video, and documents instantly in your browser. Fast, secure, and free to get started — for files up to 400MB.

Drop files here or click to browse

Supports PDF, JPG, PNG, MP4, MP3, DOCX, EPUB, WEBP, and 50+ formats

Files never leave your browser for files under 400MB
100% Private
Local Browser Processing
Ultra Fast
In-browser conversion
Free Access
Free Account, Free Forever.
Up to 400MB
Browser Memory Limit

Popular Conversion Tools

Select a dedicated tool to start converting instantly

PDF to Word

Extract text & graphics into editable DOCX format.

Word to PDF

Preserve fonts, tables, and layouts in PDF.

Create Archive

Package files into ZIP, TAR, GZIP, BZIP2, or XZ.

Convert eBook

EPUB, TXT, MD, HTML, RTF, and ODT, converted freely.

JPG to PNG

Convert raster images with full color fidelity.

PNG to WebP

Modern web format for maximum compression.

Convert Spreadsheet

XLS, XLSX, ODS, and CSV, converted between each other.

Video to MP4

Convert AVI, MOV, and MKV videos into universal MP4 files.

MP4 to MP3

Extract high quality audio tracks instantly.

Video to GIF

Turn video snippets into shareable animations.

EPUB to PDF

Convert e-books into clean, printable PDFs.

Extract Archive

Open ZIP, RAR, 7Z, TAR, GZIP, BZIP2, and XZ files.

Audio Format Switcher

Convert MP3, WAV, FLAC, OGG, Opus, M4A, and AIFF.

Supported Formats Matrix

Fyleon supports 50+ vector, document, image, and media formats

PDF Adobe Document
DOCX MS Word
XLSX MS Excel
PPTX MS PowerPoint
TXT Plain Text
RTF Rich Text
Conversion Knowledge Base

How-To Guides & Tool Tutorials

Explore 29 step-by-step guides on converting documents, video, audio, images, and archives.

Document Guide 3 min read

How to Convert PDF to Word (DOCX) Online for Free

Learn how client-side WebAssembly preserves formatting, text paragraphs, and images when converting PDFs to Word.

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Document Guide 2 min read

How to Convert Word (DOCX) Documents to PDF

Turn draft Word documents into read-only, professional PDFs instantly without needing Microsoft Office installed.

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Video Guide 4 min read

How to Compress MP4 & Video Files with a Custom Quality Slider

Ditch rigid compression presets. Adjust precise bitrate and CRF settings to reduce video size by up to 80%.

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Video Guide 3 min read

How to Convert MP4, MOV, MKV, & AVI Videos Online

Switch between video containers or convert iPhone MOV recordings to universal MP4 files effortlessly.

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Video Guide 2 min read

How to Turn Short Videos into Animated GIFs

Trim start/end times and select optimal frame rates (15fps to 30fps) to create lightweight animated GIF stickers.

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Document Guide 3 min read

How to Convert Spreadsheets (XLS, XLSX, ODS, CSV)

Import data seamlessly across Excel, LibreOffice Calc, and database CSV pipelines with zero cell formatting loss.

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Document Guide 3 min read

How to Convert eBooks (EPUB, MOBI, AZW3, Kindle Formats)

Read open-source ebooks on Kindle devices or convert EPUB publications into PDF files for desktop reading.

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Image Guide 2 min read

How to Convert Image Files (JPG, PNG, WebP, GIF, TIFF, BMP)

Batch convert heavy PNG graphics or TIFF print files into WebP images for faster web page loads.

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Vector Guide 4 min read

How to Vectorize a JPG/PNG Raster Image into Scalable SVG

Autotrace low-resolution PNG logos or sketches into infinite-resolution SVG vectors directly in browser memory.

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Audio Guide 3 min read

How to Convert Audio Files (MP3, WAV, FLAC, OGG, M4A)

Adjust audio sample rates (44.1kHz / 48kHz) and bitrates (128kbps to 320kbps) with zero server uploads.

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Archive Guide 3 min read

How to Extract RAR, 7Z, and ZIP Files Online Without Software

Open proprietary RAR archives and password-protected ZIP folders in your browser without installing 7-Zip or WinRAR.

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Archive Guide 2 min read

How to Create ZIP, TAR, GZIP, and XZ Archives

Bundle dozens of documents or photos into ZIP, TAR, GZIP, BZIP2, or XZ archives for fast email attachments. (7Z and RAR can only be extracted, not created — a permanent format limitation.)

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Image Guide 3 min read

How to Convert PNG to JPG or WebP for Faster Web Pages

Reduce image weight by 70% while maintaining crisp edges for website banners and hero images.

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Image Guide 2 min read

How to Convert WebP Images Back to PNG or JPG

Fix compatibility problems when legacy software or old image editors refuse to open modern .webp files.

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Audio Guide 2 min read

How to Extract Audio from MP4 Video Files (Video to MP3)

Save high quality 320kbps MP3 audio tracks from lectures, podcasts, or music videos in seconds.

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Audio Guide 3 min read

How to Convert FLAC Audio to MP3 Lossless vs Lossy

Shrink audiophile FLAC music collections into portable MP3 files compatible with car stereos and smartphones.

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Document Guide 3 min read

How to Convert Markdown (MD) Files to PDF or HTML

Render GitHub README.md notes and developer documentation into clean, printable PDF documents.

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Document Guide 2 min read

How to Convert TXT to PDF or Word Documents

Convert unformatted plain text notes into styled PDF documents with clean page breaks and line wrapping.

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Document Guide 2 min read

How to Convert RTF Documents to Clean DOCX

Upgrade legacy RTF files created in WordPad or older text editors into standard Word documents.

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Document Guide 3 min read

How to Convert HTML Pages to PDF Documents

Capture HTML web pages, CSS styles, and inline images directly into multi-page PDF files.

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Document Guide 2 min read

How to Convert ODT (OpenDocument Text) to PDF

Ensure cross-platform compatibility when sharing LibreOffice Writer files with Microsoft Office users.

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Document Guide 3 min read

How to Convert ODS (OpenDocument Spreadsheet) to Excel XLSX

Maintain full spreadsheet formulas, cell styling, and chart references when converting ODS to Excel.

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Video Guide 3 min read

How to Convert AVI Video Files to MP4 Format

Make legacy AVI video clips playable on modern Smart TVs, iPhones, and Android mobile devices.

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Video Guide 2 min read

How to Convert MOV QuickTime Videos to MP4

Eliminate playback glitches when playing iPhone screen recordings or QuickTime files on Windows PCs.

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Video Guide 3 min read

How to Convert MKV Video Files to MP4 for TV Playback

Fix TV USB port error "Codec Not Supported" by remuxing MKV video streams into standard MP4 containers.

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Audio Guide 2 min read

How to Convert WAV Audio to High-Quality MP3

Reduce huge uncompressed studio WAV file sizes down by 90% without losing audible sound frequencies.

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Audio Guide 2 min read

How to Convert M4A Audio to MP3 for Universal Playback

Convert iPhone voice notes and AAC compressed audio into universally supported MP3 audio files.

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Archive Guide 3 min read

How to Convert BZIP2 and XZ Compressed Archives

Extract high-ratio developer packages (.bz2 / .xz) without relying on terminal command line utilities.

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Vector Guide 4 min read

How to Vectorize Logos & Artwork into SVG Vectors Cleanly

Step-by-step vectorization tips for turning fuzzy JPEG graphic logos into crisp scalable SVG vectors.

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Zero Data Uploads

Files Under 400MB Are Processed Entirely Inside Your Web Browser

Unlike traditional converters that upload your confidential PDFs and photos to distant remote servers, Fyleon uses cutting-edge WebAssembly (FFmpeg, pdf-lib, Tesseract) directly on your device CPU.

Strict Privacy Compliance

Files under 400MB never leave your device.

Instant Execution Speed

Zero upload or download latency delay.

Offline Functional

Works even when disconnected from the internet once loaded.

Local Browser Execution Flow
Your Local File (<400MB)
Input
WebAssembly Machine Engine FFmpeg / pdf-lib compiled to WASM
In Browser
Converted Output Downloaded
Done
Heavy Compute Pipeline

Converting Heavy Files >400MB?

Big files go to dedicated cloud workers and are deleted automatically.

Cloudflare R2 Bucket

Direct presigned URL upload with zero egress fees and AES-256 encrypted storage. Uploads auto-delete in 12 hours.

Deleted automatically after processing

Modal Compute Cluster

Big files go to dedicated cloud workers and are deleted automatically.

Deleted automatically after processing

Quota-First, Pay Only If Needed

If the file fits in your plan's remaining monthly quota, it's processed free. If it doesn't — or you're on the Free plan — it's a one-time $25 charge for that file, no subscription required.

Simple, Transparent Pricing

Choose the perfect tier for personal use, heavy media encoding, or teams

Monthly Annual (1-2 months free)

Free

For basic daily conversions

$0 / forever
  • Up to 250MB Local WASM (100MB Video)
  • Free Account, No Credit Card
  • Large files over the Free limit: $25 per file

Plus

Light cloud processing

$5 / mo
  • 5GB Cloud Quota / Month
  • Up to 1.5GB Per File
  • First Month Free
Most Popular

Pro

Power creators & designers

$9 / mo
  • 20GB Cloud Quota / Month
  • Up to 1.5GB Per File
  • Batch Conversions

Power

Heavy video creators

$25 / mo
  • 50GB Cloud Quota / Month
  • Up to 5GB Per File
  • Custom Bitrate Control

Team

For businesses & agencies

$49 / mo
  • 5 Seats, 150GB Pooled Quota
  • Up to 5GB Per File
  • Central Billing & Priority Support

Frequently Asked Questions