Top 29 WhatLetter Alternatives in 2026

DeepL is an AI-powered translation tool that offers text translation from 31 languages and supports files like PDFs and Word documents. It includes a dictionary for looking up words and has both free and Pro versions with added features.

AI TranslateDocs translates PDFs, Word, Excel, PowerPoint, CSV, and TXT files, using OCR to preserve layout. It supports over 130 languages, offers secure encryption, and delivers quick, accurate translations for legal, medical, academic, and business documents.

Online Document Translator provides professional translations while preserving original formatting across various document types. It supports over 80 languages, offers batch processing, custom terminology, online editing, and ensures data privacy, making it ideal for individuals and teams.

Image Translate AI is a tool that translates text within images across 130 languages while preserving the original layout and styling. It supports batch processing of thousands of images with automatic language detection.

PDFTranslator.org is a free AI tool that translates PDF documents into nearly 100 languages while perfectly preserving the original layout, images, and formatting. Simply upload your file and receive a translated copy, or an editable Word document, in just minutes with no registration required.

OpenL Translate converts text, PDFs, images, and audio into 100+ languages, supporting dialects and emojis. Fast mode delivers short translations; Advanced mode offers precision for legal documents. It handles 150k characters and 40 scanned PDFs daily, processing locally for privacy.

Lufe AI is a fast, free AI translator for webpages, PDFs, and images, leveraging Gemini, OpenAI, and Claude for accurate multilingual support. It offers a browser extension with side-by-side translations, auto-detection, and customizable displays for seamless bilingual learning.

All‑in‑one platform integrating GPT‑4o, Claude, Gemini, and others for unified text, image, video, and document AI. Offers summarizing, translation, prompt templates, workflow tools, quiz creation, SCORM export, web search, subtitles, dubbing. SOC II‑compliant with field‑level encryption and data isolation.

Doubao AI is an all‑in‑one desktop and web assistant for drafting and editing text, translating multilingual content, generating images from prompts, analyzing documents for summaries and key facts, performing AI-powered web search, and providing code assistance.

BookTranslator automatically translates entire books into 168+ languages, preserving tables, images, and formatting across EPUB, PDF, DOCX, etc., within minutes. It offers side‑by‑side comparison, supports up to 300 MB files, and delivers instant downloadable copies.

AI TransPDF is a versatile AI tool that translates PDF, PPTX, XLSX, and other file formats while preserving original layouts, images, and tables. It supports 80+ languages, offers previews/summaries, and ensures secure, high-quality document processing.

AI PDF Tools offers robust features for editing, translating, compressing, merging, and converting PDF documents. It ensures efficient document management while maintaining formatting integrity across various formats, enhancing productivity for users handling PDF files.

Doctranslate.io is an AI-powered tool offering seamless document translation in 29 languages. It features customizable options like domain specialization, bilingual formatting, and secure data management for precise, efficient communication across global audiences.

Ai Translator compares 22 AI models via its SMART feature to produce the most agreed translations, offering over 100 languages and regional dialects. It auto‑detects source language, accepts text or files, and provides instant quality feedback and real‑time accuracy analytics.

DocTranslator delivers instant neural machine translation for over 120 languages, handling PDFs, DOCX, PPTX, XLSX, images and more up to 1 GB or 5,000 pages. It preserves formatting, supports conversion, and ensures secure, automated status tracking.

ImageTranslator is an AI tool that translates text in images while maintaining the original layout. It supports various image formats and over 100 languages, using OCR technology for accurate text detection and overlay. Download translated images securely post-processing.

AI Document Translator enables quick translation of documents in 135 languages, supporting various file formats. With an average processing time of 30 seconds per page, it ensures secure, high-quality translations for both individuals and businesses.

LightPDF lets users chat with PDFs, Word, Excel, PowerPoint, EPUB, performing OCR on scanned documents and handling multiple files per session. It returns plain text, lists, tables or markdown with citations, supporting over 100 languages in a cross‑platform interface.

TextPixie offers AI translation of text, images, audio, documents, and web articles into over 100 languages, automatically detecting source language and supporting variants like British English. It works on desktop and mobile, delivering meaning‑preserving outputs as plain text, Word, or PDF.

ParagraphAI offers real‑time grammar correction, one‑tap email drafting, and instant summarization of web pages and PDFs. It provides multilingual translation, customizable tone filters, a template library, and an instruction engine for repetitive tasks across mobile, desktop, and Chrome.

Chat & Ask AI combines web search, image generation, link analysis, document chat, and YouTube summarization in one interface. It offers up‑to‑date answers, multilingual support, file uploads, and a prompt library, powered by GPT‑5.2, Gemini, Claude, and Stable Diffusion XL.

AI Doc Maker produces PDFs, Word, PowerPoint, and Excel files from prompts or uploads, applying layouts, tables, and multilingual formatting. It provides templates for reports, contracts, proposals, and spreadsheets, streamlining document creation for professionals.

みらい翻訳 is an AI-driven translation service for businesses, offering secure machine translation for documents, audio, and video in over 20 languages. It includes specialized models for legal and financial documents and features an API for integration.

CleverAI is an all‑in‑one multimodal AI platform offering chat, image generation, video editing, PDF extraction/summarization/Q&A, smart search, mindmaps and workflow automation, with APIs, multilingual support (100+ languages), model selection, low latency and consent-based data handling.

Free AI Video Translator converts videos into over 30 languages, offering natural voice synthesis and lip synchronization. It supports various formats and includes batch processing and a transcript editor for reviewing and editing translations.

NoteGPT transcribes and summarizes lectures, meetings, and recordings in any language, offering PDF/PPT/book/video overviews, translation, and AI drafting tools. It also supports text‑to‑speech, voice cloning, infographics, slide generation, and multi‑model chat assistance.

Upload PDFs, Word, and scanned documents to create AI‑powered conversational agents that answer questions, summarize content, explain tables, and provide citations. Supports 100+ languages, collaborative workspaces, cross‑platform use, customizable tone, speech modules, and secure SOC 2/GDPR compliance.

TransMonkey is an AI translation tool that handles documents, images, and videos, preserving original formats while translating in over 130 languages. It supports 30 file formats, integrated with Google Chrome and Workspace for efficient workflow.

Read AI records, transcribes, and summarizes meetings, emails, and chats across Google Meet, Zoom, Teams, and in‑person sessions. It extracts action items, delivers searchable notes, offers contextual answers from integrated data, supports 20+ languages, and meets SOC II, GDPR, HIPAA compliance.