# ChatGPTCustomizer vs DeepL

ChatGPTCustomizer records 0 monthly visits with — month-over-month growth and Free pricing. DeepL records 95,110,871 monthly visits with -1.7% growth and Freemium pricing.

| Metric | [ChatGPTCustomizer](https://openaitools.app/tool/chatgptcustomizer) | [DeepL](https://openaitools.app/tool/deepl) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/chatgptcustomizer/ciceinlnjocpopoccfhekjebkpapogoc | https://www.deepl.com |
| Categories | AI API, AI Chatbot, AI Translate, AI Proofreading | AI Translate, AI Writing Assistants, AI API, AI Voice Translator |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 | 95,110,871 |
| MoM Growth Rate | — | -1.7% |
| Primary Market | Global | Germany |
| Direct Visits | 0 | 60,380,947 |
| Review Score | 1.8 | 4.7 |
| Saved Count | 0 | 135 |
| Supported Platforms | Browser Extension | Website |

## ChatGPTCustomizer

ChatGPTCustomizer is a browser extension designed for people who use the ChatGPT API for repeatable tasks. Instead of rewriting the same instructions every time, you define multiple profiles, each tuned to a specific job such as translating between languages, proofreading, summarizing, or teaching a language. Switching profiles tells the assistant exactly which role and behavior to adopt.

Profiles can be saved and loaded from CSV or JSON files, which makes them easy to share, back up, or move between machines. The extension also lets you import and export your conversation history as JSON, submit a single thread or all of them at once, and change the role of each response between system, assistant, and user. You can adjust the underlying ChatGPT API variables to fine-tune how answers are produced.

For speed, a quick-request shortcut works in any text input: typing //gpt followed by an instruction replaces the text with the model's reply. The extension supports the GPT-3.5-Turbo API and is offered as a free tool, though you supply your own API key, so usage costs come from OpenAI rather than the extension itself.

**Pricing & Plans:** The extension is free. You bring your own OpenAI API key, so any usage cost is billed by OpenAI according to your API consumption.

- **Multiple reusable profiles:** Save several predefined setups for translation, proofreading, summarization, language teaching, and other recurring tasks.
- **Import and export profiles:** Create, save, and load profiles from CSV or JSON files so you can share or back them up easily.
- **Conversation history control:** Import and export chat history as JSON, choose a single thread or submit all of them, and change each response's role.
- **Inline quick requests:** Type //gpt plus an instruction in any text field to replace it with the model's answer instantly.
- **API variable tuning:** Adjust the underlying ChatGPT API variables and use the GPT-3.5-Turbo API for your preferred balance.

**Strengths:** Free to install; you only pay OpenAI for API usage; Profiles are portable via CSV and JSON export; Works from any page through the inline //gpt shortcut; Simple, focused feature set that is easy to learn

**Limitations:** Requires your own OpenAI API key and basic API knowledge; Built on GPT-3.5-Turbo and last updated in 2023, so it may feel dated; No ratings yet, so community feedback is limited

[Profile (Markdown)](https://openaitools.app/tool/chatgptcustomizer.md)

## DeepL

DeepL is a specialist Language AI company widely recognized by professional translators, localization managers, and multinational enterprises for delivering more natural, idiomatic translations than general-purpose search translators or raw foundational LLMs. Headquartered in Cologne, Germany, DeepL trains proprietary neural networks and specialized language models tuned specifically for cross-lingual nuance, register, and domain accuracy across more than 30 languages. Over 200,000 businesses globally rely on DeepL to handle sensitive legal, technical, financial, and marketing communications.

The platform spans three integrated product pillars: DeepL Translator, DeepL Write, and DeepL Voice. DeepL Translator handles instant text translation and full-document conversion—preserving exact typography, embedded images, and page layouts across PDF, Microsoft Word (.docx), PowerPoint (.pptx), and Excel (.xlsx) files up to 100 MB. Through its Customization Hub, teams enforce corporate terminology using Shared Glossaries, Translation Memory, and Shared Style Rule Lists, while interactive Clarify prompts resolve source-text ambiguities. DeepL Write Pro acts as an AI writing co-pilot that refines tone, fluency, and audience adaptation in real time, and DeepL Voice delivers live multilingual captions and speech-to-speech translation for virtual meetings and face-to-face conversations.

DeepL offers a Free web and app tier capped at 50,000 characters and one 5 MB file per month, where submitted text may be used to train public models. For strict confidentiality—including immediate text deletion after translation, zero data training, ISO 27001 certification, and SOC 2 Type II compliance—users upgrade to DeepL Pro. In its current tier structure (which replaced legacy Starter, Advanced, and Ultimate naming), Individual costs $8.74/month (€7.49/month billed annually) for 300,000 characters and 3 files/month; Team costs $28.74/user/month (€24.99/month) for 1M characters, 20 files, and shared style rules; and Business costs $57.49/user/month (€49.99/month) for unlimited text translation, 100 files/month, Translation Memory, and bundled DeepL Write Pro.

**Pricing & Plans:** Offers a Free tier (50,000 characters/month and 1 file up to 5 MB); paid DeepL Pro plans billed annually are Individual at $8.74/month (€7.49/month), Team at $28.74/user/month (€24.99/user/month), and Business at $57.49/user/month (€49.99/user/month, which bundles DeepL Write Pro), plus custom Enterprise and metered API plans. All paid Translator plans include 30 minutes/user/month of DeepL Voice.

- **Layout-Preserving Document Translation:** Translates whole PDF, Word (.docx), PowerPoint (.pptx), Excel (.xlsx), and HTML files up to 30 MB (Individual/Team) or 100 MB (Business/Enterprise) while keeping original fonts, tables, slides, and visual formatting intact.
- **Customization Hub: Glossaries, Style Rules & Translation Memory:** Ensures consistent brand and technical terminology across language pairs using CSV-importable shared glossaries, automated glossary generation, shared style rule lists, and translation memory.
- **DeepL Write Pro AI Writing Assistant:** Enhances original drafts and translated copy with real-time sentence rewrites, word alternatives, and one-click tone adjustments (e.g., Business, Academic, Casual, Diplomatic) via browser, desktop, and Microsoft 365/Google Workspace add-ins.
- **DeepL Voice for Meetings & Conversations:** Provides real-time spoken language translation and live multilingual captions for video conferences and mobile in-person dialogues, with 30 minutes per user per month included in paid DeepL Pro plans.
- **Zero-Retention Enterprise Security & BYOK:** Guarantees that Pro subscriber texts are never stored or used for AI model training, backed by ISO 27001-certified European data centers, SOC 2 Type II compliance, SAML SSO, SCIM provisioning, and Enterprise Bring Your Own Key (BYOK) encryption.

**Strengths:** Consistently outperforms generic machine translators in idiomatic fluency, register control (formal vs. informal), and specialized European and Asian language pairs.; Best-in-class document translation preserves intricate PowerPoint, Word, and PDF formatting without manual desktop publishing rework.; Uncompromising enterprise privacy posture with immediate deletion of Pro translations, no model training on customer data, and optional BYOK encryption.; Unified ecosystem combining text translation, DeepL Write Pro stylistic editing, and 30 monthly minutes of DeepL Voice in standard Pro seats.

**Limitations:** TheIndividual plan ($8.74/mo / €7.49/mo) is capped at 300,000 characters and just 3 file translations per month, requiring a jump to Team ($28.74/mo) or Business ($57.49/mo) for heavy workloads.; Supports roughly 30+ core languages, which is significantly narrower than Google Translate's 130+ language catalog for rare regional dialects.; DeepL Write Pro requires an extra €6.99/user/month add-on for Individual and Team subscribers unless upgrading to the Business tier.

[Profile (Markdown)](https://openaitools.app/tool/deepl.md)

## Frequently Asked Questions

### How do ChatGPTCustomizer and DeepL compare in monthly traffic?

ChatGPTCustomizer has 0 monthly visits, while DeepL has 95,110,871. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

ChatGPTCustomizer has a month-over-month growth rate of —; DeepL has -1.7%.

### How does pricing compare?

ChatGPTCustomizer: Free. The extension is free. You bring your own OpenAI API key, so any usage cost is billed by OpenAI according to your API consumption. DeepL: Freemium. Offers a Free tier (50,000 characters/month and 1 file up to 5 MB); paid DeepL Pro plans billed annually are Individual at $8.74/month (€7.49/month), Team at $28.74/user/month (€24.99/user/month), and Business at $57.49/user/month (€49.99/user/month, which bundles DeepL Write Pro), plus custom Enterprise and metered API plans. All paid Translator plans include 30 minutes/user/month of DeepL Voice.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) |
| 3 | [DeepSeek](https://openaitools.app/tool/deepseek) | 372,761,591 | +4.3% | Freemium | High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs. | [.md](https://openaitools.app/tool/deepseek.md) |
| 4 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides. | [.md](https://openaitools.app/tool/grammarly.md) |
| 5 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Paraphrase, proofread and summarize text with an AI writing workspace | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 6 | [LanguageTool](https://openaitools.app/tool/languagetool) | 5,707,795 | -4.2% | Freemium | AI grammar, spelling and style checker for 30+ languages | [.md](https://openaitools.app/tool/languagetool.md) |
| 7 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | AI sidebar and browser agent for reading, writing and research | [.md](https://openaitools.app/tool/sider.md) |
| 8 | [OpenL Translate](https://openaitools.app/tool/openl) | 1,470,643 | +8.8% | Freemium, Subscription | AI translation for text, images, documents and speech in 100+ languages | [.md](https://openaitools.app/tool/openl.md) |
| 9 | [Lara Translate](https://openaitools.app/tool/lara-translate) | 982,359 | -16.1% | Freemium, Paid, Contact for Pricing | Professional AI translation for text, documents, images and audio | [.md](https://openaitools.app/tool/lara-translate.md) |
| 10 | [AIPRM](https://openaitools.app/tool/aiprm) | 708,870 | -6.9% | Freemium, Paid | A prompt library and management layer for ChatGPT and other AI models | [.md](https://openaitools.app/tool/aiprm.md) |

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Source: https://openaitools.app/compare/chatgptcustomizer-vs-deepl

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