For YouTubers & Creators

YouTuber Toolkit

Download YouTube captions, generate millisecond-accurate SRT subtitles, create AI voiceovers, transcribe and translate — 9 free browser tools for creators. No sign-up.

9 Free Browser Tools + 1 Android App

YouTube MP3 / MP4 Download

Paste a YouTube link → download audio as MP3 or video as MP4 (360p–720p). Free.

MP3 / MP4 Free No sign-up

YouTube Captions & Thumbnail Download

Paste a YouTube link → download SRT/TXT captions and the video thumbnail.

SRT · TXT Thumbnail Free

Audio Transcription (STT)

Upload MP3/WAV/M4A → Whisper AI transcribes it to text, right in your browser.

Whisper AI MP3 · WAV · M4A

AI Voiceover + SRT Subtitles (TTS)

Type your script → download a natural MP3 voiceover plus a millisecond-accurate SRT subtitle file, in one click. 20+ languages.

NEW MP3 + SRT Free

Audio → SRT (Groq Whisper)

Upload MP3/WAV/M4A → Groq Whisper generates aligned SRT subtitles with timestamps. Free API key.

SRT Groq Whisper Free

Subtitle Translator

Paste or upload SRT / VTT → translate to 100+ languages, download the result.

Free No sign-up

SRT Time Shifter

Subtitles out of sync? Paste SRT, enter offset in seconds → download fixed file.

SRT Works offline

Timestamp Link Generator

Paste a video URL + timestamp → get a link that jumps straight to that second.

Image Converter

Convert WebP, JPG or PNG to JPG or PNG in-browser — batch, no watermark, no upload.

WebP · JPG · PNG Works offline

GistAI — YouTube on Android

Get YouTube captions & AI summaries on your phone. Tap any video — understand the gist in seconds.

Download on Google Play

FAQ

Are these tools really free?

Yes. Every tool is permanently free — no sign-up, no ads, no hidden fees.

Are my files uploaded to a server?

Most tools run entirely in your browser, so your files never leave your device. A few (caption download, AI voiceover, MP3) use our server to do the work — each request is processed and immediately discarded, never stored or logged.

Do I need to create an account?

No account needed. Open a tool and start using it right away.

Built in the quiet hours, between everything else. Bookmark it for next time — and if it helped — ☕ Buy me a coffee

☕ If it saved you time — Buy me a coffee