518 alternatives

Tools that do what 518 does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from 518.

Read 2026-11-02 · 518 itself: Free plan

With a free plan or free to use: Cleanor Research Labs, 1PDF.best, John's Essentials, Corenexis, FreeDailyPro, Shorix, Tools That Don't Upload, Foxit PDF Services (MCP).

10 alternativesUnlike 518

#1
Cleanor Research Labs Documents MCP · open
Converts, compresses and trims images, PDFs and audio in the browser, with files processed on the user's device rather than uploaded.
Also: ImageOwn MCP server
129k
Active
From $4.17/mo
#2
1PDF.best Documents
Processes PDFs locally in your browser: merge, split, rotate, watermark, encrypt, and convert to images.
Also: SecurityMore widely used
125
Active
From $3.99/mo
#3
John's Essentials Documents MCP · sign-in
Runs file processing tools like PDF compression and image conversion through AI agents without manual uploads or downloads.
Also: Agents, Workflow automationMore widely used
3
Active
From $15/mo
#4
Pdf Documents MCP · sign-in
Edits, signs, merges, splits, compresses and converts PDF and office files in the browser, with AI chat and summarizing.
Also: Data extraction, SummarizationMore widely used
124k
Active
2024
#5
Ai pdfzio Documents
Runs PDF tools entirely in your browser: merge, compress, convert, extract text, encrypt, and optimize documents locally.
More widely used
51
Maintained
2023
#6
Corenexis Documents MCP · sign-in
Validates emails, renders PDFs, runs OCR and makes QR codes through JSON REST endpoints behind one API key.
More widely used
19.3k
Active
2022
#7
FreeDailyPro Documents MCP · sign-in
Runs PDF, image, video and document tools entirely in the browser, with files processed on the user's device.
More widely used
1.4k
Active
From $1 once
#8
Shorix Documents
Converts and processes PDFs, images, audio, and video files in a browser without installation.
More widely used
2
Active
Free plan
#9
Tools That Don't Upload Documents MCP · open
Runs PDF, image, audio and video tools inside the browser so files are processed on the user's device without uploading.
Own MCP serverMore widely used
Little sign of use
Active
From $9/mo
#10
Foxit PDF Services (MCP)Documents
Edits, converts, annotates and signs PDF files in desktop, mobile and web apps, and offers PDF SDKs and APIs for developers.
More widely used
264k
Active
From $4.99/mo
1996

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How this list is made: the words 518 is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.