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VideosMax

Video Editor

Trim, crop, convert and transform your videos seamlessly.

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Video Editor

On-device processing

Trim, caption, and export videos directly in the browser.

Preset
TikTok (9:16)
Clip
-
Subtitles
-
Bitrate
4800 kbps
Basics

Trim

Trim
Start
End
Preset and output
Preset
Compression
Template
Subtitles
Language
Output

Preview and subtitles

No subtitles yet
Upload a video and generate or capture subtitles.
Quick FAQ

Does it run locally? Yes, the main workflow runs in the browser.

Does burning subtitles change the engine? No, it only affects the final output.

When should I use the queue? For larger files and recurring batches.

Sobre

In-browser video editor

Por Quorify EditorialAtualizado em

Quorify's Video Editor runs on your device via WebCodecs/FFmpeg.wasm — trim clips, generate subtitles via the Web Speech API, and export clips ready for TikTok, Reels, or YouTube Shorts without uploading the raw file to external servers. Supports MP4, WebM, and MOV up to about 120 MB (practical browser memory limit). Ideal for quick cuts, lecture captioning, and previewing vertical edits before finishing in heavyweight editors (Premiere, DaVinci, CapCut).

Casos

When to use it

  1. Trim a clip from a recorded lecture (15-90s) with auto subtitles to post on Instagram or LinkedIn without opening a desktop editor.

  2. Reformat horizontal video (16:9) into 9:16 (TikTok/Reels/Shorts), preserving the subject with a safe zone and an optional brand header.

  3. Generate an .srt file from live voice capture, review the text, and burn subtitles into the final video for muted autoplay scenarios.

  4. Slice a long recording (meeting, talk) into short clips ready for distribution on social media, without uploading the confidential file to a server.

  5. Prototype cuts and subtitles before handing off to a professional editor to finish the master version.

Método

How it works

The video is loaded directly into the browser's <video> tag via a blob:URL. Trimming uses MediaRecorder + Canvas API (copy mode, no re-encode when possible) and exports as WebM or MP4. Subtitles are generated in two ways: Web Speech API (live microphone capture) or by parsing text pasted by the user, synced via proportional timestamps. The optional burn-in uses Canvas overlay frame by frame. Everything is processed in the browser — verifiable by opening DevTools (F12 > Network) and confirming that no request carrying the video file is made during use.

FAQ

Frequently asked questions

Is the video uploaded to a server?
No. Processing runs in the browser via WebCodecs/MediaRecorder. You can verify this by opening DevTools (F12) > Network tab while using the tool and confirming that no request carrying the file is made. For clips over 120 MB or very long jobs, we offer an opt-in queue with server-side rendering (explicit opt-in with a notice).
What's the maximum supported file size?
Around 120 MB in the browser (practical memory limit available to a tab in Chrome/Firefox/Edge). Larger files may freeze the tab. For heavy videos, we recommend trimming smaller clips before processing or using the opt-in queue (server-side rendering with contractual privacy).
Does it work offline?
Yes, after the first page load. FFmpeg.wasm and other modules are cached by the browser. You can disconnect from the internet and keep trimming videos. The exception is voice capture in some browsers that rely on cloud-based recognition.
Is video quality preserved?
In copy mode (no re-encode), yes — the clip is extracted preserving the original codec and bitrate. In burned-subtitle mode, re-encoding occurs (controlled drop of ~5-10% in effective bitrate). To preserve maximum quality, export subtitles as a separate .srt and keep the original video.
Can I use it for professional content?
Yes — output comes straight from the browser's MediaRecorder, with no watermark. For enterprise use (compliance, SLA, 24/7 support), we recommend a dedicated desktop editor. Quorify focuses on prototyping and quick cuts for creators and professionals with one-off needs.
Which output formats are supported?
WebM (VP9/VP8 + Opus) by default across all browsers; MP4 (H.264 + AAC) when the browser supports MediaRecorder with the MP4 mime (recent Safari/Chrome). For guaranteed MP4 conversion, use the /tools/video-to-mp4 tool as post-processing.
Fontes

Official sources

Tabelas, leis e referências consultadas para fundamentar esta ferramenta.

  1. SpecificationW3C Working Draft (2024)W3C

    WebCodecs API — W3C Specification

    Official specification for the browser's native video encode/decode APIs used for trimming without re-encoding.

    Consultar fonte oficial
  2. DocumentationMDN Living StandardMDN / Mozilla

    MediaRecorder API — MDN Web Docs

    Canonical documentation for the API used to record the canvas stream + audio into the final WebM/MP4 file.

    Consultar fonte oficial
  3. Documentationv0.12+FFmpeg WASM Project

    FFmpeg.wasm — Official documentation

    WebAssembly port of FFmpeg used as a re-encode fallback when the browser lacks WebCodecs or the target MIME is unsupported.

    Consultar fonte oficial
  4. SpecificationEditor's DraftW3C

    Web Speech API — W3C Community Group

    Specification for the speech recognition API used to generate subtitles from live voice capture.

    Consultar fonte oficial
  5. Official guideTikTok Creator Portal 2026TikTok

    TikTok Video Specs (Creator Portal)

    Official specs for aspect ratio (9:16), resolution (1080×1920), duration (up to 10 min), and recommended bitrate for export presets.

    Consultar fonte oficial

Metodologia — esta ferramenta consulta as tabelas e legislação vigentes nas fontes acima. As regras são atualizadas conforme novas instruções normativas são publicadas pelos órgãos competentes.

Última verificação editorial: junho de 2026.

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SponsoredQuorify · free plan
Quorify Pro

Use Quorify without limits

100 uses/day across all 125 tools · ad-free · extended history

Starting at$4.08/mo
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