#regex

Escape a string so it is safe to drop into a specific context. Pick a target — a regular expression (so the text matches literally), a shell command (POSIX single-quote wrapping), a JSON string, a CSV field (RFC 4180 quoting) or a SQL string literal — and get back the correctly escaped value, plus a short note on the rule applied. The contexts endpoint lists every target with a worked example. Perfect for code generation, building commands and queries, templating and data export, and safely interpolating user input. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. The SQL context is a quoted literal for convenience, not a replacement for parameterised queries. Distinct from base64/hex/URL/HTML-entity encoders.

api.oanor.com/escape-api

Run regular expressions server-side without the ReDoS risk. Test whether a pattern matches, extract all matches with their positions and capture groups (numbered and named), replace with a substitution pattern, or split text — all with the familiar JavaScript regex flags (g, i, m, s, u, y). Every evaluation runs in an isolated sandbox with a hard timeout, so a catastrophic-backtracking pattern can never hang your service; you get a clear timeout error instead. Inputs accept GET query parameters or a JSON POST body. Pure local compute with no third-party upstream, so responses are instant and the service is always available. Ideal for no-code and automation platforms, data-cleaning pipelines, form and input validation, log parsing and content tooling.

api.oanor.com/regex-api