Auto Subtitle Generator by ngram

Auto Subtitle Generator Team Video Captions

Drop a video or click to upload

MP4, MOV, WebM, MKV - the auto subtitle pass uses the speech track

ngram.com/tools/auto-subtitle-generator
Mock ngram tool preview

What it does

Drop in a video or audio file. ngram transcribes the speech with AssemblyAI, lays timed subtitle lines on the timeline, and leaves every word, break, and style choice open before the captioned project moves into translation, resize, or export.

Trusted by teams at

Salesforce
Salesforce
HubSpot
HubSpot
PayPal
PayPal
Snap Inc.
Snap Inc.
Rocket Mortgage
Rocket Mortgage
Tektronix
Tektronix
Diligent
Diligent
Times Internet
Times Internet
Fivetran
Fivetran
Demandbase
Demandbase
Salesforce
Salesforce
HubSpot
HubSpot
PayPal
PayPal
Snap Inc.
Snap Inc.
Rocket Mortgage
Rocket Mortgage
Tektronix
Tektronix
Diligent
Diligent
Times Internet
Times Internet
Fivetran
Fivetran
Demandbase
Demandbase
Eightfold AI
Eightfold AI
PingCAP
PingCAP
Quizizz
Quizizz
Apryse
Apryse
Sandbox VR
Sandbox VR
Improvado
Improvado
Taggbox
Taggbox
Matrixport
Matrixport
Glasswall
Glasswall
ContractSafe
ContractSafe
Eightfold AI
Eightfold AI
PingCAP
PingCAP
Quizizz
Quizizz
Apryse
Apryse
Sandbox VR
Sandbox VR
Improvado
Improvado
Taggbox
Taggbox
Matrixport
Matrixport
Glasswall
Glasswall
ContractSafe
ContractSafe

How it works

From upload to auto-generated subtitles.

ngram runs the transcription, places timed subtitle lines on the timeline, and hands the project back so the words, timing, and styling stay editable before export.

01

Upload the speech source

Drop in a video, audio file, webinar replay, demo, or share-link URL. Clearer speech needs fewer corrections after the auto subtitle pass.

Speech source ready

AssemblyAI engine
02

Run the automatic transcription

ngram transcribes the audio with AssemblyAI and writes the subtitle lines onto the timeline in one pass, with timing aligned to the spoken cadence.

Auto-generated subtitles in

03

Review words, timing, and style

Fix product names, acronyms, and line breaks. Nudge any timing the auto pass got close but not perfect. Apply caption font, color, and position from the brand kit.

Lines reviewed and styled

04

Export or keep working

Render the captioned video, hand it to translation for a localized pass, resize for vertical and square cuts, or keep editing the rest of the project in the same workspace.

Ready for channels

What it can do

What ngram's auto subtitle generator does.

The automatic pass writes the lines so a captioned video starts from a reviewable timeline instead of a blank caption track.

Built for auto-generated subtitles that ship to real channels

When it matters

Where auto-generated subtitles change the video.

Nine ngram use-case pages where the automatic subtitle pass is the difference between a clip that ships and one that sits in a folder.

Feature Announcement Video

Use this workflow to create feature announcement video assets from approved business source material.

Open AI video use case

Marketing Social Clips

Run the auto subtitle pass on every social cut so demand-gen ships LinkedIn, Reels, and Shorts variants without manual captioning between drafts.

Open AI video use case

LinkedIn Video

Drop founder and PMM clips straight into the auto subtitle generator so the feed version reads cleanly while most viewers scroll silently.

Open AI video use case

Webinar Clips

Cut a long webinar into short highlights and auto-generate subtitles on each clip so the moment plays without context for new viewers.

Open AI video use case

Help Center Video

Auto-generate subtitles on support walkthroughs so customers can scan the fix at a noisy desk without unmuting the player.

Open AI video use case

Training Video

Run the auto subtitle pass on policy, SOP, and product training clips so people can rewatch and search the captions during quiet review.

Open AI video use case

Tutorial Video

Auto-generate subtitles on tutorial recordings so each step reads alongside the cursor, even when the viewer is following on a second screen.

Open AI video use case

Product Demo Video

Auto-caption demo recordings so UI names, button labels, and value points stay clear when the deal-room link is opened in a meeting.

Open AI video use case

Internal Communication Video

Auto-generate subtitles on team updates so the Slack post lands in headphones, open offices, or transit without audio playing out loud.

Open AI video use case

Product stack

The product stack around auto-generated subtitles.

Auto subtitles are one layer; these features keep the captioned video moving through translation, brand styling, voiceover, and export without leaving ngram.

Explore all features

Captions & Subtitles

The captions feature owns the auto-generated subtitle layer end to end: timing, line breaks, styling, and the burn-in render that ships.

Learn more about captions

Translation & Localization

Send the auto-generated subtitles into a translated pass so the same timing drives Spanish, French, German, and Japanese variants of the captioned clip.

Learn more about translation

Brand Kit

Lock auto subtitle styling to brand fonts, colors, outline, and position so every automatically captioned video reads with the same look.

Learn more about brand kit

Video Editing

Open the editor to trim, reorder, or layer additional scenes around the auto-generated subtitle track without breaking timing on the existing lines.

Learn more about video editing

Script Generation

Reuse the auto-generated transcript as the source script for recaps, social cutdowns, or follow-up videos that share the same wording.

Learn more about script generation

AI Voiceover

Pair auto subtitles with a regenerated voiceover when the original audio is rough, so the captioned cut ships with clean speech matched to the lines.

Learn more about AI voiceover

Multi-Format Export

Render the auto-captioned project as widescreen, square, and vertical MP4 so the same subtitle pass covers every channel cut.

Learn more about export formats

Enterprise Integrations

Route auto-generated subtitle jobs through Zapier, n8n, Make, MCP, the Chrome extension, and channel publishers so captioned video moves between systems.

Learn more about integrations

More tools

Tools that pair with the auto subtitle pass.

Use these to prepare the source for cleaner auto-captions, polish the captioned video after, or run a different subtitle job entirely.

All ngram tools

Other subtitle and transcript tools

Different jobs around the same speech-to-text work.

Add Subtitles to Video

Take the auto-generated lines and render a single burned-in MP4 when the deliverable is a hardcoded captioned video.

Open tool

Video Caption Generator

Switch to animated, word-by-word social captions when a short clip needs emphasis and motion instead of clean subtitle lines.

Open tool

Video to Text

Pull a plain transcript from the same video when the next step is research notes, summaries, or written content.

Open tool

Audio to Text

Run audio-only files through transcription when no video exists yet but a transcript will drive later captions.

Open tool

Clean the source before auto-captioning

Better input means fewer corrections after the automatic pass.

Remove Background Noise from Video

Strip chatter and room hum so the auto subtitle generator works from a cleaner speech track.

Open tool

Remove Background Noise from Audio

Clean a separate audio source before it becomes the input to the auto subtitle pass.

Open tool

Video Cutter

Trim the clip down to the section that needs captions before running the automatic subtitle generation.

Open tool

Eye Contact AI

Fix off-camera gaze on talking-head footage so the auto-captioned final cut also reads as a confident take.

Open tool

Polish the captioned video

Finish the auto-captioned project before it ships.

Add Text to Video

Stack titles, lower-thirds, and callouts on top of the auto-generated subtitle layer without overlap.

Open tool

Add Music to Video

Lay a music bed under speech after the auto subtitle review so the mix never throws off readability.

Open tool

Video Editor

Open the full editor to fine-tune the auto subtitle track alongside scenes, audio, and motion graphics.

Open tool

Video Compressor

Shrink the auto-captioned MP4 for email, deal rooms, and platforms with strict upload limits.

Open tool

Translate or repurpose

Carry the auto-generated subtitle work into other languages and formats.

Video Translator

Translate the auto-generated subtitles into another language without rerunning transcription or retyping every line.

Open tool

Voice Dubber

Dub the auto-captioned video so localized audio rides alongside the translated subtitle track.

Open tool

Video to GIF

Loop a short auto-captioned moment as a GIF for docs, email, or chat embeds when a full clip would be too heavy.

Open tool

Video Converter

Convert the auto-captioned MP4 into the codec or container the destination platform expects.

Open tool

Convert

Where the clip that needs auto-subtitles usually starts.

Three source-to-video converters that produce the recordings most likely to land in the auto subtitle generator next.

Screen Recording to Video

Turn a rough screen capture into a polished walkthrough, then run the auto subtitle pass so every narrated step reads on screen.

Open converter

Webinar to Clips

Cut a long webinar into short highlights, then auto-generate subtitles per clip so each pull works on muted social feeds.

Open converter

Audio to Video

Layer visuals on a podcast or voice recording, then let the auto subtitle generator do the heavy lifting so captions carry the meaning.

Open converter

Who it is for

Teams that auto-caption every video by default.

Auto-generated subtitles are the baseline for teams whose videos travel across muted feeds, support pages, training portals, and shared inboxes.

All solutions

Growth & Marketing

Ship social cuts and ad variants where auto subtitles let the message land in the first three seconds of a silent scroll.

See growth workflows

Product Marketing Managers

Run launch clips, demo cutdowns, and explainer videos through the auto subtitle pass so feed, deck, and email versions match.

See product marketing workflows

Sales Enablement

Auto-caption demo recordings and prospecting videos so muted laptop views still pick up the value props and next steps.

See sales workflows

Customer Success

Auto-generate subtitles on onboarding and QBR videos so customers can rewatch and skim without unmuting.

See CS workflows

Support Teams

Auto-caption help-article videos and ticket replies so the fix reads through at a noisy desk.

See support workflows

Educators

Run lecture and tutorial recordings through the auto subtitle generator so students can read along, search the captions, and review later.

See educator workflows

HR & Internal Comms

Auto-caption all-hands videos and policy explainers so they play in shared rooms, open offices, and Slack channels without sound.

See internal comms workflows

Agencies & Consultants

Auto-generate subtitles across client cuts so every deliverable ships with the brand-styled caption pass already in.

See agency workflows

Developer Relations

Turn docs, tutorials, API updates, and conference recordings into developer-facing video assets.

See DevRel workflows

Integrations

Move auto-generated subtitles into and out of the workflow.

Live ngram integrations that fit a workflow where a recording arrives, the auto subtitle pass runs, and the captioned clip needs to go somewhere next.

Zapier

No-code

WhenA new recording lands in Drive, Dropbox, or a form intake that flags it for captions

ThenKick off the ngram auto subtitle pass and send the captioned MP4 back to the requester

Integrate with Zapier

MCP Server

Agentic

WhenClaude or ChatGPT is asked to auto-generate subtitles on a clip shared in chat

ThenCall ngram, run the auto subtitle generator, and return the captioned video inside the agent thread

Use MCP Server

n8n

Workflow

WhenA CMS record or content task marks a fresh recording as ready for auto-captions

ThenRoute the file into ngram for the auto subtitle pass and write the captioned video URL back to the record

Integrate with n8n

Make.com

Scenario

WhenA launch clip or webinar pull is approved for auto-captioning

ThenRun the auto subtitle generator in ngram and notify the owner with the captioned version

Integrate with Make

Chrome Extension

Capture

WhenYou find a recording on the web that needs subtitles before it can be shared

ThenHand the source straight to ngram and start the auto subtitle pass without re-downloading the file

Install Chrome extension

LinkedIn

Publish

WhenAn auto-captioned clip is approved for the company or founder feed

ThenPublish the captioned version to LinkedIn with the post copy attached

Connect LinkedIn

X (Twitter)

Publish

WhenA short auto-captioned teaser or update is cleared to post

ThenPush the captioned clip to X with the matching launch copy alongside

Connect X

YouTube

Publish

WhenA long-form cut finishes the auto subtitle pass and is ready to upload

ThenSend the captioned MP4 to YouTube with title, description, and chapter markers

Connect YouTube
Enterprise Integrations

For programmatic auto subtitle jobs, the public API, webhook subscriptions, presigned S3 uploads, and the MCP endpoint cover the same paths.

Why ngram

How ngram compares as an auto subtitle generator.

Most auto subtitle tools end at a styled caption file. ngram keeps the auto-generated subtitle pass attached to the editor, brand kit, translation, and the rest of the project.

ComparengramVEEDSubmagicDescript
Workflow fitAuto-generates subtitles with the AssemblyAI engine inside the same project used for editing, brand kit, translation, and multi-format export.VEED auto-generates subtitles in the browser with broad language coverage and exports captions burned in or as SRT, VTT, or TXT files.Submagic specializes in auto-generated animated captions for short-form social video with emoji highlights and styled templates.Descript auto-generates subtitles from its transcript and exports burned-in captions or SRT and VTT files alongside text-based editing.
How ngram fitsKeeps every auto-generated line editable on the timeline and tied to script, voiceover, and channel variants for the next pass.Dynamic and karaoke-style subtitle presets fit short-form creator content well.It fits creators producing high-volume Reels, approved social channels, and Shorts content that need viral caption treatments.It suits podcast, recording, and creator teams that want the transcript as the primary editing surface.
Best useBest for teams that want auto-captioned business video to roll straight into the next demo, social cut, or localized variant.ngram is stronger when the auto subtitle pass should stay connected to source material, brand kit, voiceover, and downstream variants.ngram fits when the auto subtitle work belongs inside a business video project with brand kit, translation, and longer-form export.ngram fits when the auto subtitle pass should sit alongside storyboard, voiceover, brand kit, and multi-format export.

FAQ

Common questions about the auto subtitle generator

Upload a video, audio file, or media URL. ngram runs AssemblyAI transcription on the speech and writes timed subtitle lines onto the project timeline. Review wording, timing, and styling, then export the captioned video or continue editing inside the same workspace.

Still curious?

Automatic captions, ready to ship

Drop in the recording, let ngram auto-generate the subtitle lines, review wording and styling, and keep the captioned project moving through translation, resize, and export.

Run the auto subtitle generator now, then finish the full video in ngram.

Auto subtitles, brand styling, translation, export