Translate subtitles, compress images, convert files, and more. Everything runs in your browser — no sign-up needed.
SRT, VTT, ASS, SBV, SUB into 30+ languages. Batch up to 20 files.
Convert between SRT, VTT, ASS, and more.
Shift timing forward or backward.
Combine two files into bilingual subtitles.
Paste and translate between 30+ languages.
Reduce file size. PNG, JPG, WebP.
PNG, JPG, WebP conversion.
Combine multiple PDFs into one.
Generate QR codes from text or URLs.
Count words, characters, sentences.
Prettify, validate, and minify JSON.
Encode and decode Base64 strings.
Pick colours, convert HEX, RGB, HSL.
Write Markdown, see rendered HTML live.
Test patterns with live match highlighting.
Compare two texts and see differences highlighted.
Convert between CSV and JSON formats.
Generate SHA-1, SHA-256, SHA-384, SHA-512 hashes.
Extract text from images using Tesseract.js.
Convert text to spoken audio.
Transcribe audio to text.
ectoplasma.org · Free tools for everyone.