Multimedia

Change speed in bulk in your browser (ffmpeg.wasm). Outputs MP3/OGG/WAV (OPUS disabled). First load downloads the core files.

Re-encode and compress in your browser (ffmpeg.wasm). Choose MP3 / OGG (Vorbis) and set target bitrate / sample rate / channels. First load downloads the core.

Runs entirely in your browser via FFmpeg.wasm. Choose output format (excluding Opus), bitrate, sample rate, and channels. Note: large files use more memory.

Trim and loop an audio segment fully in your browser (ffmpeg.wasm). Supports 1–8 loops, 0%–200% volume, outputs MP3 / OGG / WAV.

Records entirely in your browser. Start/pause/resume, preview, download; input device selection, waveform, WAV/Opus export, noise suppression, and more.

Runs entirely in your browser. Export WAV (always works) or any other browser-supported type (Opus excluded).

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs AAC. Choose M4A (recommended, previewable) or ADTS .aac (raw). First load downloads t

Runs fully in your browser with ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and AC3 output. First load downloads the core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs lossless FLAC. First load downloads the core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs M4A (AAC or ALAC). First load downloads the core. Optionally set NEXT_PUBLIC_FFMPEG_*

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs MP3. First load downloads the core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs OGG (Vorbis). First load downloads the core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs PCM. Choose WAV container or RAW .pcm (headerless). First load downloads core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs lossless WAV (PCM). First load downloads the core.

BTC Dashboard, runs in your browser.

Runs fully in your browser. Live preview, photo capture and video recording. Nothing leaves your device.

Text-only. No uploads; everything runs in your browser.

Generates official redirect links (Google update service). Parses CRX2/CRX3 fully in your browser and exports ZIP.

Supports PNG, JPG, WebP. Processing happens locally in your browser.

Type text, set speed & colors. The text baseline stays parallel to the longer side, and the motion goes

All conversion happens locally in your browser.

Runs fully in your browser; no uploads.

Recommended

Supports PNG, JPG, WebP, and more. Conversion happens locally in your browser.

Supports PNG, JPG, GIF, WebP, etc.

Runs fully in-browser: extract dominant color & palette with contrast and previews.

Runs fully in your browser. Obfuscates pixels using a password-derived deterministic PRNG (xorshift128+). Re-applying restores the image.

Runs entirely in your browser. Click or drag an image to the left area.

Runs fully in your browser. Merge images horizontally or vertically, set spacing, then download.

Supports PNG, JPG, WebP and more. Everything runs locally in your browser.

Batch processing supported. Exports PNG/WebP with transparent corners. All done locally.

Supports PNG, JPG, GIF, WebP, etc.

Runs fully in your browser. Batch, presets, custom rows/cols, zoom preview, ZIP export.

Supports PNG, JPG, WebP, and more. Conversion happens entirely in your browser.

Supports PNG, JPG, WebP, and more. Everything runs locally in your browser.

Supports JPG, WebP, GIF, BMP and more. Conversion happens locally in your browser.

Runs fully in your browser. Supports text/image watermarks, opacity, placement, click-to-position, tiling, scale, rotation, blend modes and export.

Metronome, runs in your browser.

Adjust a single PDF entirely in your browser. Nothing is uploaded.

Processing happens locally in your browser. Multiple files supported.

Recommended

Processing happens entirely in your browser.

Processing happens locally in your browser.

Runs fully in your browser. Default export is XLSX; DOCX and PPTX are also available.

Runs fully in your browser. Default export is DOCX; XLSX and PPTX are also available.

Runs fully in your browser. Default export is PPTX; DOCX and XLSX are also available.

Drop/select a photo (JPG/HEIC/PNG*). Read EXIF and get per-parameter checks with suggested ranges.

Generate PNG placeholders locally. Customize size/label/font/background.

Pomodoro, runs in your browser.

Upload images (JPG/PNG/WebP) or image-only PPTX files, then play fullscreen. Supports auto-play and keyboard controls.

Convert each slide to absolutely-positioned HTML; images go to /assets/ folder.

Sharper export: auto PPT size, DPI scale, font size/line height, JPEG quality. 100% in-browser.

Export structured JSON of PPTX (text boxes & images with coordinates).

Enhanced: parse shape coords and preserve layout as much as possible; images supported. One PDF page per slide. 100% in-browser.

Extract all text from PPTX to TXT or Markdown.

Runs fully in your browser (RGB PSD only). Batch rename/toggle visibility and export layers to PNG/WebP.

Everything runs locally in your browser. Record screen + optional system audio + microphone.

For more reliable results, use fullscreen mode.

Pick a sticker sheet image, auto-detect each cell and export as PNGs bundled into a ZIP — all in your browser.

Everything runs locally in your browser. Scrolling & recording are not uploaded.