Do it without uploading a file
When you use most online tools, your file is sent to a server. On Bluebird, it isn't. Every one of our 301 tools runs inside your browser tab — no upload, no download button on a strange domain, no waiting queue.
Compress without upload
Compress a photo or PDF without ever uploading it.
- Image CompressorA 12 MB photo down to 300 KB — no fuzzy faces, no upload, no account. Drag a JPG, PNG or WebP and slide the live before/after to find the sweet spot.
- Batch Image CompressorShrink dozens of JPG, PNG or WEBP photos at once — runs in parallel Web Workers, no upload on server.
- PDF CompressorShrink PDF files in your browser. High-quality, balanced or smallest — your file stays private and never uploads.
- SVG OptimizerShrink SVG files up to 80% smaller — strip editor junk, comments and unused IDs while keeping the visual identical.
Convert without upload
Change formats without leaving your browser.
- HEIC to JPGConvert iPhone HEIC photos to JPG or PNG in your browser. Batch-convert dozens and download them as a ZIP.
- WebP to JPGTurn WebP images into universal JPGs. Batch + quality slider, all in your browser.
- AVIF to JPGConvert AVIF to JPG for maximum compatibility. Quality slider, batch mode, no upload.
Edit PDFs without upload
Merge, split, rotate and edit PDFs in the tab.
Edit audio without upload
Trim, convert and mix audio locally.
- Audio Format ConverterConvert between MP3, WAV, M4A and OGG with a choice of MP3 quality from 96 to 320 kbps.
- Audio TrimmerCut MP3, WAV, M4A or OGG files to the exact start and end you want — saves as MP3 or WAV.
- Audio MergerJoin several audio clips into one continuous track, in the order you choose.
- Audio Speed ChangerSpeed up or slow down any audio from 0.25× to 4× — perfect for lessons, podcasts and effects.
- Voice RecorderRecord voice memos with live level meter, pause and resume. Saves locally as audio files.
Developer tools without upload
Decode, format and hash locally — safe for secrets.
- JWT DecoderPaste a token to see header, payload and signature. The token never leaves your browser, so it's safe for prod secrets.
- JSON FormatterPaste anything — a webhook payload, a config, a copied fetch response. We'll indent it, sort the keys, and tell you exactly where the missing comma is.
- Base64 Encoder & DecoderTurn text or files into Base64 and back. URL-safe option and a one-click file-to-data-URL helper.
- Hash GeneratorGenerate SHA-1, SHA-256, SHA-384 and SHA-512 hashes from text or any file — and verify a download with one paste.
- UUID GeneratorGenerate up to 1,000 secure v4 or time-sortable v7 UUIDs. Bulk copy, download or tweak the format.
- Regex TesterWrite patterns and see matches highlight live. Tune flags, inspect capture groups, and throw ugly patterns at it safely — ReDoS-guarded.
How can it work with no upload?
Modern browsers are powerful. They can decode images, parse PDFs, transcode audio, run cryptography and format code — all without a server. Bluebird ships that logic as JavaScript and WebAssembly, and runs it in a Web Worker inside your tab. Your file is passed to that worker in memory. Nothing is sent over the network for processing.