Media
Browse 17 professional tools
ASCII Art Generator
Audio Editor
Barcode Generator
Image Background Remover
Image Compressor
Image to Base64 Converter
Image to Text (OCR)
Instrument Tuner
Metronome
Noise Generator
PDF Tools
QR Code Generator
QR Code Scanner
Screen Recorder
Sound Synthesizer
Text to Speech
Video to GIF
Media tools handle the operational steps you take with images, audio, and video before publishing or sharing. The recurring trade-off is "size vs quality" — WebP at quality 85 is the right default for almost every web image (10× smaller than PNG, visually indistinguishable from JPEG). For audio, target -16 to -19 LUFS for podcast; -14 for music streaming. For animated content, MP4 beats GIF by 5-50× in size.
Images
WebP at quality 85-90 is the modern default; PNG only for sharp-edged content with transparency that needs pixel-perfect. Background removal uses U²-Net / BiRefNet WebAssembly models in-browser (no upload).
Compress and resize images online without losing quality. Reduce JPEG, PNG, WebP file size. Free image optimization tool with adjustable quality
Convert images between PNG, JPEG, and WebP formats. Batch conversion with quality control. Free online image format converter
Edit images with crop, resize, rotate, filters, text. Draw shapes and annotations. Free online photo editor in browser, no upload required
Convert images to Base64 encoded strings for embedding in HTML/CSS. Support for PNG, JPEG, GIF, WebP. Free online image to data URI converter
Remove background from images using AI. Works offline in your browser. Free online background eraser, no upload to server required
Generators
QR codes (with logo, vCard, WiFi), EAN-13 / Code 128 / UPC barcodes with proper checksums, 7-file favicon packages for modern browsers. Audio: white/pink/brown noise generator with sleep timer; subtractive synthesizer for sound effects.
Create QR codes for URLs, text, WiFi, vCard contacts. Customize colors and download PNG/SVG. Free online QR code maker with logo support
Scan and decode QR codes from images or camera. Read QR code content instantly. Free online QR code reader and barcode scanner
Generate EAN-13, UPC-A, Code128, Code39, ITF barcodes. Download as PNG or SVG. Free online barcode maker for products and inventory
Generate favicons in all sizes (16x16, 32x32, 180x180) from any image. Create ICO and PNG favicons. Free online favicon maker for websites
Sleep sound machine with white, pink, brown noise, rain, ocean waves & nature sounds. Sleep timer with fade-out, binaural beats for deep sleep & focus. Free ambient noise generator
Create sounds with oscillators, harmonics and ADSR envelopes. Generate tones, waves, sound effects. Free online audio synthesizer and tone generator
Convert text to ASCII art banners with various fonts. Create text art for terminals, comments. Free online ASCII text art generator with FIGlet fonts
Video & audio editing
GIF conversion only when the recipient cannot handle MP4 (GitHub README, Slack-old, email); for everything modern use MP4. Audio editor handles trim/normalize/compress at LUFS targets; pitch detection via YIN algorithm for tuner.
Convert video clips to animated GIFs. Control FPS, size, duration, crop region. Free online video to GIF converter, works offline in browser
Record your screen, browser tab or webcam directly in browser. No installation required. Export to WebM or GIF. Free online screen capture tool
Record, edit, mix audio with waveform visualization. Cut, trim, apply effects to audio. Free online audio editor and recorder in browser
Professional metronome with tap tempo, time signatures (4/4, 3/4, 6/8), accent patterns, and visual beat indicator. Free online metronome for musicians
Chromatic tuner using your microphone. Detect pitch, see nearest note, tune guitar, bass, ukulele, violin. Free online instrument tuner with cent deviation
Convert text to speech using your browser. Listen to text in multiple languages and voices. Adjust speed and pitch
Documents
Merge / split / rotate / compress / annotate PDFs locally (no upload). OCR via Tesseract WebAssembly — accuracy ~88-92% for printed text, far less for handwriting. For production-grade OCR, use cloud services.
Merge, split, rotate PDF files online. Create PDFs from images. Rearrange PDF pages. Free online PDF editor and converter without upload limits
Extract text from images using optical character recognition. Support for screenshots, photos, scanned documents. Free online OCR tool, works offline in browser
Frequently asked questions
Why is my image larger after "compression"?
Almost always: you converted from JPEG to PNG, which is lossless and bigger on photos. Or the source was already optimally compressed. Always check file size after compression — if it grew, keep the original. Photos: JPEG or WebP-lossy. Screenshots with text or icons: PNG or WebP-lossless.
Should I use GIF or MP4 for animated content?
MP4 unless the destination cannot render video. GIFs are 5-50× larger for equivalent quality due to 256-color palette and per-frame encoding. GitHub READMEs and email previews still favor GIF for compatibility; Twitter/X auto-converts GIF to MP4 anyway.
What is LUFS and do I care?
LUFS is perceptual loudness, what your ear hears. Streaming platforms normalize to a LUFS target (Spotify -14, Apple Music -16, podcasts -16 to -19). Master to peak-only and your audio gets turned down by the platform; master to the target and you stay at the level you intended.
How private is in-browser OCR vs cloud OCR?
Browser OCR (Tesseract WASM) keeps the image local — useful for medical records, financial documents, anything you would not upload. Cloud OCR (Google Vision, AWS Textract) is 5-10% more accurate but the image hits their servers. Pick based on sensitivity of content.
Last updated · E-Utils editorial team