Tools · Compressors
File compressors
Pick a category, then open the format-specific tool — JPG, PNG, MP4, MP3, and more. Everything runs in your browser. Conversion files are not uploaded to Format Convertly servers.
Image Compressor
Shrink photos and graphics in your browser — format-specific tools for JPG, PNG, WebP, HEIC, and AVIF.
JPG Compressor
Re-encode JPEG photos at a chosen quality for a smaller file.
PNG Compressor
Compress PNG graphics — saves as WebP for strong size reduction (transparency kept in lossless-friendly settings).
WebP Compressor
Re-encode WebP images with a quality slider for tighter files.
HEIC Compressor
Compress iPhone HEIC photos into a smaller JPG for sharing and uploads.
AVIF Compressor
Re-encode AVIF stills or convert heavy AVIFs to efficient WebP/JPG-friendly delivery.
PDF Compressor
Shrink large PDFs locally with a quality slider before email or upload.
Video Compressor
Re-encode common video containers to a smaller MP4 in your browser.
Audio Compressor
Re-encode audio to a smaller MP3 — podcasts, voice notes, and music shares.
MP3 Compressor
Re-encode MP3 at a lower bitrate for a smaller download.
WAV Compressor
Compress WAV masters into a smaller MP3 for sharing.
M4A Compressor
Compress M4A/AAC audio into a smaller MP3.
FLAC Compressor
Compress lossless FLAC into a smaller MP3 for delivery.
OGG Compressor
Compress OGG/Vorbis audio into a smaller MP3.
Learn how compression works in the compression guides. Need a format change instead? Browse converters or see quality guides.