Software Alternatives, Accelerators & Startups

Tampermonkey VS Captioner.io

Compare Tampermonkey VS Captioner.io and see what are their differences

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Tampermonkey logo Tampermonkey

Greasemonkey compatible script manager.

Captioner.io logo Captioner.io

Captioner is an AI subtitle generator and editor for your videos. Add accurate subtitles to your videos and save hours of work. Upload your videos and edit right on your browser.
  • Tampermonkey Landing page
    Landing page //
    2023-01-13
  • Captioner.io Landing page
    Landing page //
    2026-07-02

Add Accurate Subtitles to your Videos

Add accurate subtitles to your videos and save hours of work. Upload your videos and edit right on your browser. Translate your subtitle into another language with a single click. Get subtitle file for your YouTube video or download the video with subtitles added.

Powered by Whisper but Optimized for Video Subtitles

  • Focused on Accuracy. We don't cut corners when we transcribe your videos, we use the highest quality AI model to make sure the transcription is as accurate as possible. This saves you time and money in your content creation process.
  • Precise Timestamps. Not every AI transcription tool gives you timestamps precise enough for videos. We add extra processing to align the timestamps so you don't have to spend too much time tweaking them. We also provide word-level timestamps for more fine-grained controls.
  • Smooth Subtitle Editing Experience. Captioner is built by content creators, for content creators. We spent hours perfecting the editing experience so you can spend more time on your content and less time on the tools.
  • Import and Align Existing Transcripts. You might already have a transcript written for your video. No problem! You can import it directly into Captioner and we will align it for you. (Think YouTube's auto-sync feature, but better!)
  • Subtitle File Export. Different platforms and editing softwares use different subtitle file formats. We support the most popular formats (SBV, SRT, VTT) so you can add quickly add subtitles into your YouTube videos. You can also choose a font style directly from the editor and get a video export with the subtitles burned in.

"I haven't found an AI transcription software that is not only accurate but also affordable until I came across Captioner. It's a game changer for our channel."

Tampermonkey

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

Captioner.io

$ Details
freemium $20.0 / Monthly
Platforms
Windows MacOS
Release Date
2024 April
Startup details
Country
Singapore
Founder(s)
Simon Liang
Employees
1 - 9

Tampermonkey features and specs

  • User-Friendly Interface
    Tampermonkey offers an intuitive user interface that makes managing and editing user scripts straightforward.
  • Cross-Browser Support
    Tampermonkey supports all major browsers including Chrome, Firefox, Safari, Edge, and Opera, ensuring compatibility for most users.
  • Sync Capabilities
    The extension provides synchronization options via cloud storage services, enabling users to back up and restore their scripts.
  • Wide Range of Scripts
    Users have access to a vast repository of pre-written scripts that extend functionality on a variety of websites.
  • Automatic Updates
    Tampermonkey can automatically update installed scripts, keeping them up-to-date with the latest features and fixes.
  • Customizability
    Allows users to create and customize their own scripts, providing a high degree of personalization.

Possible disadvantages of Tampermonkey

  • Security Risks
    Scripts can potentially be harmful if they are not from a trusted source, exposing users to security vulnerabilities.
  • Resource Consumption
    Running multiple scripts simultaneously can consume significant browser resources, leading to performance issues.
  • Complex for Beginners
    While the interface is user-friendly, the concept of writing and debugging scripts can be daunting for users without coding experience.
  • Browser Compatibility Issues
    Some scripts may not work uniformly across all supported browsers, leading to inconsistent experiences.
  • Privacy Concerns
    Scripts have the ability to access and manipulate website content, which could lead to privacy issues if not managed properly.

Captioner.io features and specs

  • Ease of Use
    Captioner.io provides a user-friendly interface that's easy to navigate, making it accessible for individuals with varying technical expertise.
  • Accuracy
    The platform utilizes advanced algorithms to deliver highly accurate captioning, reducing the need for extensive manual corrections.
  • Customization
    Users can customize captions to suit different styles and preferences, allowing for greater personalization and flexibility.
  • Speed
    Captioner.io processes audio and video files quickly, enabling fast turnaround times for projects requiring captions.
  • Integration
    The service integrates seamlessly with a variety of platforms and software, facilitating a smooth workflow for users.

Analysis of Tampermonkey

Overall verdict

  • Yes, Tampermonkey is considered good by many users and developers due to its extensive feature set, ease of use, and stability. It has a strong community support that consistently updates and creates a variety of scripts to enhance user experience across different websites.

Why this product is good

  • Tampermonkey is a popular browser extension that allows users to install and manage user scripts, which can enhance web pages by adding functionalities or automating behaviors. It supports most major browsers and offers a wide range of features including easy script management, cloud synchronization, and an intuitive user interface. This flexibility and power make it a favorite among developers and power users who need custom solutions for specific online tasks.

Recommended for

    Tampermonkey is recommended for developers, tech enthusiasts, and users who wish to customize their web browsing experience. It's especially useful for individuals who frequently use specific websites and want to automate repetitive tasks or add new functionalities that are not natively supported by those sites.

Analysis of Captioner.io

Overall verdict

  • Captioner.io is a solid, user-friendly captioning and subtitling tool that leverages AI to quickly generate accurate captions for video and audio content, making it a good choice for creators seeking efficiency and accessibility.

Why this product is good

  • Automated AI-powered transcription that saves significant time compared to manual captioning
  • Supports multiple languages and translation for reaching wider audiences
  • Easy-to-use editing interface for refining and customizing captions
  • Helps improve video accessibility and compliance with accessibility standards
  • Boosts SEO and engagement by making content searchable and viewable without sound
  • Export options compatible with popular platforms and video formats

Recommended for

  • Content creators and YouTubers who need fast, accurate captions
  • Marketing teams producing video content for social media
  • Educators and e-learning platforms requiring accessible materials
  • Businesses aiming to meet accessibility compliance requirements
  • Podcasters and video producers wanting to repurpose content with transcripts
  • Anyone seeking to reach international audiences through subtitle translation

Tampermonkey videos

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Captioner.io videos

No Captioner.io videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Tampermonkey and Captioner.io)
Browser Extensions
100 100%
0% 0
Video Tools
0 0%
100% 100
Dark Mode
100 100%
0% 0
Subtitle Maker
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, Tampermonkey seems to be more popular. It has been mentiond 135 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Tampermonkey mentions (135)

  • Fixing ChatGPT "Lost First Key" Bug in Firefox
    // ==UserScript== // @name ChatGPT Firefox Input Focus Fix // @namespace http://tampermonkey.net/ // @version 1.0 // @description Fixes lost first keystroke in ChatGPT input on Firefox by focusing and clicking the textarea // @match https://chat.openai.com/* // @match https://chatgpt.com/* // @grant none // ==/UserScript== (function () { const simulateClick = (el) => { ... - Source: dev.to / about 1 year ago
  • How to Fix Auto-Expanding Menu Issues in Tampermonkey Script
    // ==UserScript== // @name Hide Expanding Menu Bar // @namespace http://tampermonkey.net/ // @version 0.1 // @require https://code.jquery.com/jquery-3.6.0.min.js // @description Hides Zillow auto-expanding menu // @author mikmak // @match https://www.zillow.com/* // @grant GM_addStyle // ==/UserScript== Const $ = window.$; Function hideExpandingMenu() { ... - Source: dev.to / over 1 year ago
  • How to Force GitHub Actions to Light Theme Using Tampermonkey
    // ==UserScript== // @name Remove data-dark-theme attributes // @namespace http://tampermonkey.net/ // @version 2024-06-23 // @description Remove data-dark-theme attributes from GitHub Actions console // @author masayoshi haruta // @match https://github.com/*/*/actions/runs/* // @icon https://www.google.com/s2/favicons?sz=64&domain=github.com // @grant none //... - Source: dev.to / about 2 years ago
  • How do I remove the yellow highlighting every time I search for a word?
    // @name 0 Highlight remover // @namespace http://tampermonkey.net/ // @version 0.1 // @description try to take over the world! // @author You // @match https://outlook.office.com/mail/id/* // @icon https://www.google.com/s2/favicons?sz=64&domain=office.com // @grant none // ==/UserScript==. Source: over 2 years ago
  • jQuery Library Conflict (TamperMonkey)
    // ==UserScript== // u/name {snipped} // u/namespace http://tampermonkey.net/ // u/version 0.1 // u/description {snipped} // u/author You // u/match {snipped} // u/require http://code.jquery.com/jquery-3.7.1.min.js // u/icon https://www.google.com/s2/favicons?sz=64&domain=pokefarm.com // u/grant none // ==/UserScript== /* global jQuery... Source: over 2 years ago
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Captioner.io mentions (0)

We have not tracked any mentions of Captioner.io yet. Tracking of Captioner.io recommendations started around Jun 2025.

What are some alternatives?

When comparing Tampermonkey and Captioner.io, you can also consider the following products

Violentmonkey - Violentmonkey is a userscript manager to support running userscripts in web pages.

Descript - Text-based audio editor and automated transcription

Greasemonkey - Customize the way a web page displays or behaves, by using small bits of JavaScript.

PixScript - Paste a YouTube, TikTok, or Instagram URL and get the full transcript with timestamps. Export as SRT subtitles, plain text, or PDF. AI summaries, rewriting, and 50+ language translation built in. Free to start.

Userscripts - An open-source userscript editor for Safari.

GeekLink.dev - GeekLink AI Subtitle Factory: batch auto-transcribe, OCR, AI translation, and subtitle burn-in. All locally on Mac. Free 7-day trial.