Converts Opus files to AAC format — voice-over-IP, real-time communication, and streaming at very low bitrates with excellent quality to modern streaming services, YouTube, and devices where AAC is the native codec. All conversion happens locally in your browser with no file size limits.
Convert AAC audio files to OPUS format directly in your browser. High-quality conversion with no file size limits. Private and free.
Convert OPUS audio files to MP3 format directly in your browser. High-quality conversion with no file size limits. Private and free.
Convert AAC audio files to FLAC format directly in your browser. High-quality conversion with no file size limits. Private and free.
Reduces PDF file size by compressing embedded images, removing redundant metadata, and optimizing object streams. Three compression tiers let you choose between maximum size reduction and high-quality preservation. Handles PDFs up to 50MB.
Reduces image file size to a specific target — 50 KB, 100 KB, or 200 KB — by automatically adjusting JPEG quality, reducing pixel dimensions, or stripping EXIF metadata. Ideal for government forms, job applications, and upload portals with strict file size limits.
Opus (Opus Interactive Audio Codec) uses lossy compressed encoding and is best for voice-over-IP, real-time communication, and streaming at very low bitrates with excellent quality. AAC (Advanced Audio Coding) uses lossy compressed encoding and excels at modern streaming services, YouTube, and devices where AAC is the native codec. Converting between them lets you take advantage of each format's strengths — for example, using a compressed format for sharing and a lossless format for editing. All conversion happens locally in your browser with no file size limits.
At the same bitrate, Opus is generally more efficient than AAC. At 256kbps, most listeners cannot tell the difference. For critical listening, keep your Opus originals.
AAC typically needs a slightly higher bitrate than Opus to achieve equivalent quality. A 128kbps Opus file might become a 160-192kbps AAC file of similar perceptual quality.
Standard metadata fields like title, artist, album, and track number transfer from Opus to AAC. Custom or non-standard tags may not survive the conversion.
Yes. AAC is Apple's preferred audio format. The converted file plays natively in Apple Music, GarageBand, and any iOS audio app without additional conversion.
Text to Speech (TTS)
Generate natural-sounding speech from text with AI voices in Hindi, Tamil, Telugu, Bengali, and more Indian languages. Adjust speed, pitch, and volume — download as MP3 or WAV.
Audio Cutter
Trim and cut audio files online — MP3, WAV, M4A, FLAC, and OGG. Select start and end points visually on the waveform, then download the trimmed clip.
MP3 to WAV
Converts MP3 files to WAV format — universal music playback and sharing across all devices and platforms to professional audio editing, mastering, and archival in DAWs and production software. All conversion happens locally in your browser with no file size limits.
Speech to Text
Transcribe audio to text in multiple languages — supports MP3, WAV, M4A, and FLAC with AI-powered speech recognition.
MP3 Compressor
Reduce MP3 file size by adjusting bitrate and audio quality settings. Perfect for saving storage or faster uploads.
Apple Music Preview Extractor
Extracts publicly available 30-to-90-second audio preview clips from Apple Music by resolving the store URL. No signup or account required.